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Class 11 Biotechnology - Processes Of Recombinant Dna Technology - Cutting of DNA Easy Quiz

Level 48 • 50/50 questions • 40 seconds per question.

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यदि किसी cloning plan में insert को सही दिशा में लगाना है तो कौन सी strategy बेहतर होगी?

If an insert must be placed in the correct direction in a cloning plan which strategy is better?

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A. दो अलग restriction enzymes से directional cloningDirectional cloning with two different restriction enzymes

Explanation

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दो अलग ends insert को एक दिशा में लगाने में मदद करते हैं। परीक्षा में directional cloning को orientation control से जोड़ें। / Two different ends help place the insert in one direction. In exams link directional cloning with orientation control.

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एक vector में MCS का सबसे अच्छा उपयोग क्या है?

What is the best use of MCS in a vector?

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B. कई restriction sites देकर cloning आसान करनाMaking cloning easier by providing multiple restriction sites

Explanation

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MCS में कई unique restriction sites होती हैं। इससे suitable enzyme चुनना आसान होता है। / MCS has many unique restriction sites. This makes choosing a suitable enzyme easier.

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किस स्थिति में selected restriction enzyme insert के लिए गलत होगा?

In which situation will the selected restriction enzyme be wrong for an insert?

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B. जब enzyme insert के अंदर desired gene को काट देWhen enzyme cuts inside the desired gene

Explanation

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Insert के अंदर cut site होने पर gene टूट सकता है। Enzyme चुनने से पहले insert sequence check करें। / If a cut site is inside the insert the gene can break. Check insert sequence before choosing the enzyme.

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Restriction enzyme चुनने से पहले vector map क्यों देखा जाता है?

Why is a vector map checked before choosing a restriction enzyme?

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C. cut sites और cloning region समझने के लिएTo understand cut sites and cloning region

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Vector map restriction sites और important elements दिखाता है। इससे सही cutting plan बनता है। / A vector map shows restriction sites and important elements. This helps make a correct cutting plan.

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अगर vector में chosen enzyme site कई जगह हो तो क्या समस्या हो सकती है?

What problem can occur if the chosen enzyme site is present at many places in the vector?

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A. vector कई fragments में कट सकता हैThe vector can cut into many fragments

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Multiple sites vector backbone को unwanted fragments में तोड़ सकती हैं। Unique site controlled cloning के लिए बेहतर है। / Multiple sites can break the vector backbone into unwanted fragments. A unique site is better for controlled cloning.

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Restriction digestion में in silico analysis का मतलब क्या है?

What does in silico analysis mean in restriction digestion?

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A. computer पर DNA sequence और cut sites predict करनाPredicting DNA sequence and cut sites on computer

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In silico analysis enzyme sites और expected bands पहले से predict करता है। यह cloning errors कम कर सकता है। / In silico analysis predicts enzyme sites and expected bands beforehand. It can reduce cloning errors.

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Expected restriction bands पहले से क्यों predict किए जाते हैं?

Why are expected restriction bands predicted beforehand?

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A. result को gel pattern से compare करने के लिएTo compare result with gel pattern

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Expected bands और observed bands की तुलना से digestion result समझ आता है। यह diagnostic digest में जरूरी है। / Comparing expected and observed bands helps interpret digestion result. This is necessary in diagnostic digest.

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अगर observed bands expected bands से अलग हों तो क्या करना चाहिए?

If observed bands differ from expected bands what should be done?

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B. troubleshooting और confirmation करेंTroubleshoot and confirm

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Unexpected pattern wrong clone partial digest या star activity दिखा सकता है। Controls और sequencing से पुष्टि करें। / An unexpected pattern can show wrong clone partial digest or star activity. Confirm using controls and sequencing.

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Restriction digestion में positive control किसलिए उपयोगी है?

Why is a positive control useful in restriction digestion?

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A. enzyme activity verify करने के लिएTo verify enzyme activity

Explanation

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Known DNA पर expected cut enzyme की working दिखाता है। Positive control failure reaction problem बताता है। / Expected cutting on known DNA shows enzyme working. Positive control failure indicates reaction problem.

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No-enzyme control का सही उपयोग क्या है?

What is the correct use of a no-enzyme control?

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B. uncut DNA pattern दिखाने के लिएTo show uncut DNA pattern

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No-enzyme control से original DNA form दिखती है। इससे cut sample के pattern की तुलना होती है। / A no-enzyme control shows the original DNA form. This is compared with the cut sample pattern.

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अगर no-enzyme control में भी smear दिखे तो क्या संकेत हो सकता है?

If smear appears even in no-enzyme control what can it indicate?

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B. DNA पहले से degraded हो सकता हैDNA may already be degraded

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No-enzyme lane में smear DNA quality problem दिखा सकता है। Enzyme को दोष देने से पहले DNA integrity check करें। / A smear in no-enzyme lane can show DNA quality problem. Check DNA integrity before blaming the enzyme.

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Restriction enzyme reaction में correct buffer क्यों जरूरी है?

Why is correct buffer necessary in restriction enzyme reaction?

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A. enzyme के pH salt और cofactors को सही रखने के लिएTo provide correct pH salt and cofactors for enzyme

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Restriction enzymes defined buffer conditions में best काम करते हैं। गलत buffer incomplete digestion दे सकता है। / Restriction enzymes work best in defined buffer conditions. Wrong buffer can give incomplete digestion.

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कुछ restriction enzymes को magnesium ion क्यों चाहिए होता है?

Why do some restriction enzymes need magnesium ion?

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A. enzyme activity के cofactor के रूप मेंAs a cofactor for enzyme activity

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Magnesium ion कई restriction enzymes की catalytic activity में मदद करता है। Buffer में required ions दिए जाते हैं। / Magnesium ion helps catalytic activity of many restriction enzymes. Required ions are provided in buffer.

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Restriction digestion में enzyme को reaction setup के दौरान ठंडा क्यों रखा जाता है?

Why is the enzyme kept cold during restriction digestion setup?

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A. enzyme stability बनाए रखने के लिएTo maintain enzyme stability

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Restriction enzymes heat-sensitive proteins हो सकते हैं। Cold handling activity loss कम करता है। / Restriction enzymes can be heat-sensitive proteins. Cold handling reduces activity loss.

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Reaction mix में enzyme last में add करने का practical कारण क्या है?

What is the practical reason for adding enzyme last in reaction mix?

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A. enzyme exposure और timing control करनाTo control enzyme exposure and timing

Explanation

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बाकी components पहले सही concentration में मिल जाते हैं। Enzyme last में डालने से reaction timing better control होती है। / Other components are mixed at correct concentration first. Adding enzyme last gives better reaction timing control.

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Restriction digestion में बहुत अधिक DNA डालने से क्या हो सकता है?

What can happen if too much DNA is added in restriction digestion?

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A. enzyme insufficient होकर incomplete digestion दे सकता हैEnzyme may become insufficient and give incomplete digestion

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DNA amount enzyme capacity से match होना चाहिए। बहुत अधिक DNA complete digestion को कठिन कर सकता है। / DNA amount should match enzyme capacity. Too much DNA can make complete digestion difficult.

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Reaction में बहुत कम DNA होने पर gel result कैसा हो सकता है?

What can gel result look like if DNA is too low in a reaction?

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A. band बहुत faint हो सकती हैBand can be very faint

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Low DNA loading faint bands दे सकता है। DNA concentration check करके suitable amount load करें। / Low DNA loading can give faint bands. Check DNA concentration and load a suitable amount.

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Restriction digestion में incubation time बढ़ाने से हमेशा फायदा क्यों नहीं होता?

Why does increasing incubation time not always help in restriction digestion?

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A. बहुत लंबी incubation star activity या DNA damage risk बढ़ा सकती हैVery long incubation can increase star activity or DNA damage risk

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Recommended time digestion के लिए enough होता है। Too long incubation specificity घटा सकती है। / Recommended time is enough for digestion. Too long incubation can reduce specificity.

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Star activity कब अधिक हो सकती है?

When can star activity increase?

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A. wrong buffer excess enzyme या long incubation मेंIn wrong buffer excess enzyme or long incubation

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Star activity में enzyme non-specific sites पर cut कर सकता है। Recommended conditions इसे कम करती हैं। / In star activity the enzyme can cut at non-specific sites. Recommended conditions reduce it.

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Partial digestion और star activity में मुख्य अंतर क्या है?

What is the main difference between partial digestion and star activity?

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A. partial में सभी sites नहीं कटते और star में गलत sites भी कट सकते हैंIn partial digestion not all sites cut and in star activity wrong sites may cut

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Partial digestion incomplete cutting है। Star activity reduced specificity के कारण extra cutting दे सकती है। / Partial digestion is incomplete cutting. Star activity can give extra cutting due to reduced specificity.

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अगर DNA methylated है तो कुछ restriction enzymes क्यों fail हो सकते हैं?

Why can some restriction enzymes fail if DNA is methylated?

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A. methylation recognition या cutting रोक सकती हैMethylation can block recognition or cutting

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कुछ enzymes methylated recognition sites नहीं काटते। इसलिए methylation sensitivity देखना जरूरी है। / Some enzymes do not cut methylated recognition sites. Therefore methylation sensitivity must be checked.

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Dam या Dcm methylation किससे जुड़ी हो सकती है?

Dam or Dcm methylation can be related to what?

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A. bacterial DNA methylation

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कुछ bacterial strains DNA को methylate करते हैं। यह restriction digestion patterns को प्रभावित कर सकता है। / Some bacterial strains methylate DNA. This can affect restriction digestion patterns.

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अगर restriction enzyme methylation-sensitive है तो cloning plan में क्या ध्यान रखें?

If a restriction enzyme is methylation-sensitive what should be considered in cloning plan?

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A. DNA source और methylation statusDNA source and methylation status

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Methylated DNA enzyme cutting रोक सकता है। इसलिए suitable host strain या alternative enzyme चुना जा सकता है। / Methylated DNA can block enzyme cutting. Therefore a suitable host strain or alternative enzyme can be chosen.

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Restriction digestion के बाद heat inactivation कब useful है?

When is heat inactivation useful after restriction digestion?

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A. जब enzyme को next step से पहले रोकना होWhen enzyme must be stopped before next step

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Heat inactivation कुछ enzymes की activity रोक सकती है। हमेशा enzyme-specific instructions देखें। / Heat inactivation can stop activity of some enzymes. Always check enzyme-specific instructions.

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सभी restriction enzymes heat-inactivated क्यों नहीं होते?

Why are all restriction enzymes not heat-inactivated?

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A. हर enzyme की heat stability अलग होती हैEach enzyme has different heat stability

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कुछ enzymes heat के बाद भी active रह सकते हैं। इसलिए purification की जरूरत हो सकती है। / Some enzymes can remain active after heat. Therefore purification may be needed.

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Restriction digestion cleanup का लाभ क्या है?

What is the benefit of restriction digestion cleanup?

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A. enzyme buffer salt और small fragments हटानाRemoving enzyme buffer salt and small fragments

Explanation

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Cleanup ligation या PCR जैसे next steps को बेहतर बना सकता है। Clean DNA reactions में अधिक useful होता है। / Cleanup can improve next steps like ligation or PCR. Clean DNA is more useful in reactions.

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Gel extraction कब जरूरी हो सकती है?

When can gel extraction be necessary?

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A. desired DNA fragment को बाकी fragments से अलग करने के लिएTo separate desired DNA fragment from other fragments

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Gel extraction specific band को recover करती है। यह insert purification में useful है। / Gel extraction recovers a specific band. It is useful in insert purification.

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Gel extraction के दौरान DNA loss क्यों हो सकता है?

Why can DNA loss occur during gel extraction?

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A. binding washing या elution में incomplete recovery सेDue to incomplete recovery during binding washing or elution

Explanation

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Gel extraction में DNA recovery पूर्ण नहीं होती। इसलिए band cutting और elution सावधानी से करें। / DNA recovery in gel extraction is not complete. Therefore cut bands and elute carefully.

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UV transilluminator पर DNA band लंबे समय तक रखने से क्या risk है?

What is the risk of keeping DNA band on UV transilluminator for too long?

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A. DNA damage

Explanation

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UV light DNA को damage कर सकती है। Band को जल्दी cut करना बेहतर है। / UV light can damage DNA. It is better to cut the band quickly.

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Blue light transilluminator का advantage क्या हो सकता है?

What can be an advantage of a blue light transilluminator?

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A. UV damage कम हो सकता हैUV damage can be reduced

Explanation

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Blue light DNA damage को UV की तुलना में कम कर सकता है। यह cloning fragments के लिए helpful है। / Blue light can reduce DNA damage compared with UV. It is helpful for cloning fragments.

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Restriction digestion में gel loading dye किसलिए जोड़ा जाता है?

Why is gel loading dye added in restriction digestion analysis?

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A. sample loading आसान करने और migration track करने के लिएTo ease sample loading and track migration

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Loading dye sample को well में बैठाने और run track करने में मदद करता है। यह DNA काटता नहीं है। / Loading dye helps sample sink into wells and track the run. It does not cut DNA.

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Agarose gel percentage choosing में क्या देखा जाता है?

What is considered while choosing agarose gel percentage?

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A. expected fragment size range

Explanation

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Different agarose percentages different size ranges को better separate करते हैं। Fragment size के अनुसार gel चुनें। / Different agarose percentages separate different size ranges better. Choose gel according to fragment size.

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छोटे DNA fragments के लिए higher agarose percentage क्यों useful हो सकती है?

Why can higher agarose percentage be useful for small DNA fragments?

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A. better resolution के लिएFor better resolution

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Higher agarose gel छोटे fragments को बेहतर अलग कर सकता है। यह size resolution बढ़ाता है। / Higher agarose gel can separate small fragments better. It improves size resolution.

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Large DNA fragments के लिए lower agarose percentage क्यों helpful हो सकती है?

Why can lower agarose percentage help for large DNA fragments?

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A. large fragments migration आसान करने के लिएTo allow easier migration of large fragments

Explanation

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Lower agarose gel में pores बड़े होते हैं। इससे large fragments better resolve हो सकते हैं। / Lower agarose gel has larger pores. This can help resolve large fragments better.

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Restriction digest gel पर ladder lane क्यों जरूरी है?

Why is the ladder lane necessary on a restriction digest gel?

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A. fragment size compare करने के लिएTo compare fragment sizes

Explanation

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DNA ladder known fragment sizes देता है। इसके बिना sample band size estimate कठिन होता है। / DNA ladder gives known fragment sizes. Without it estimating sample band size is difficult.

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Restriction enzyme result में एक ही DNA के अलग forms क्यों दिख सकते हैं?

Why can different forms of the same DNA appear in restriction enzyme result?

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A. plasmid conformation जैसे supercoiled open circular और linear के कारणDue to plasmid conformations like supercoiled open circular and linear

Explanation

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Uncut plasmid अलग conformations में migrate कर सकता है। Digest के बाद linear band अलग दिखती है। / Uncut plasmid can migrate in different conformations. After digestion the linear band appears differently.

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Open circular plasmid gel पर क्यों अलग migrate कर सकता है?

Why can an open circular plasmid migrate differently on a gel?

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A. उसकी conformation compact नहीं होतीIts conformation is not compact

Explanation

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Open circular plasmid supercoiled form से कम compact होता है। इसलिए gel mobility अलग होती है। / Open circular plasmid is less compact than supercoiled form. Therefore gel mobility differs.

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Supercoiled plasmid अक्सर linear से अलग distance क्यों चलता है?

Why does supercoiled plasmid often travel a different distance than linear DNA?

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A. compact shape migration बदलती हैCompact shape changes migration

Explanation

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Plasmid shape gel mobility को प्रभावित करती है। इसलिए uncut plasmid size estimate सावधानी से करें। / Plasmid shape affects gel mobility. Therefore estimate uncut plasmid size carefully.

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Restriction digest में DNA loading बहुत अधिक हो तो क्या समस्या हो सकती है?

What problem can occur if too much DNA is loaded in restriction digest gel?

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A. bands smear या distorted हो सकते हैंBands may smear or distort

Explanation

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Overloading gel band interpretation को कठिन बना सकता है। Proper DNA amount load करें। / Overloading the gel can make band interpretation difficult. Load proper DNA amount.

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Restriction digest में low voltage gel run करने का एक लाभ क्या हो सकता है?

What can be one benefit of running a restriction digest gel at lower voltage?

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A. better band resolution मिल सकती हैBetter band resolution may be obtained

Explanation

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बहुत high voltage bands को diffuse या distorted कर सकता है। Proper voltage resolution में मदद करता है। / Very high voltage can diffuse or distort bands. Proper voltage helps resolution.

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DNA stain का उपयोग gel में किसलिए होता है?

Why is DNA stain used in a gel?

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A. DNA bands visualize करने के लिएTo visualize DNA bands

Explanation

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DNA stain DNA bands को प्रकाश में दिखाई देने योग्य बनाता है। Safety rules follow करें। / DNA stain makes DNA bands visible under light. Follow safety rules.

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Restriction digestion gel documentation क्यों important है?

Why is gel documentation important after restriction digestion?

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A. band pattern record करने के लिएTo record band pattern

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Gel image future comparison और lab record के लिए proof देता है। यह clone verification में useful है। / A gel image gives proof for future comparison and lab record. It is useful in clone verification.

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Restriction digest report में expected और observed bands क्यों लिखे जाते हैं?

Why are expected and observed bands written in a restriction digest report?

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A. result interpretation और verification के लिएFor result interpretation and verification

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Expected bands plan से और observed bands gel से मिलते हैं। Compare करके conclusion निकाला जाता है। / Expected bands come from plan and observed bands from gel. Conclusion is drawn by comparison.

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Restriction enzyme name लिखते समय accuracy क्यों जरूरी है?

Why is accuracy important while writing restriction enzyme name?

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A. गलत enzyme नाम wrong cutting plan दे सकता हैWrong enzyme name can give wrong cutting plan

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EcoRI और EcoRV जैसे names अलग enzymes दिखा सकते हैं। Small name error result बदल सकता है। / Names like EcoRI and EcoRV can represent different enzymes. A small name error can change result.

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EcoRI और EcoRV में confusion क्यों dangerous है?

Why is confusion between EcoRI and EcoRV risky?

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A. दोनों different cut patterns दे सकते हैंThey can give different cut patterns

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Similar names होने पर भी enzymes अलग recognition या ends दे सकते हैं। Enzyme selection में exact name जरूरी है। / Even with similar names enzymes can give different recognition or ends. Exact name is needed in enzyme selection.

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Restriction digestion में labelling mistake से क्या होगा?

What can happen due to a labelling mistake in restriction digestion?

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A. sample या enzyme mix-up हो सकता हैSample or enzyme mix-up can occur

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Wrong labels result interpretation को गलत बना सकते हैं। Clear labelling basic lab safety और accuracy है। / Wrong labels can make result interpretation incorrect. Clear labelling is basic lab safety and accuracy.

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Restriction digestion में record keeping क्यों जरूरी है?

Why is record keeping necessary in restriction digestion?

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A. repeat experiment और troubleshooting के लिएFor repeating experiment and troubleshooting

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Records में enzyme buffer time temperature और result लिखना useful है। इससे reproducibility बढ़ती है। / It is useful to record enzyme buffer time temperature and result. This increases reproducibility.

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Restriction digestion में safety का मुख्य point क्या है?

What is the main safety point in restriction digestion?

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A. reagents stains और biological DNA samples को safely handle करनाSafely handling reagents stains and biological DNA samples

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DNA stains और chemicals hazardous हो सकते हैं। PPE और proper disposal follow करें। / DNA stains and chemicals can be hazardous. Follow PPE and proper disposal.

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Level 48 का best revision chain क्या है?

What is the best revision chain for Level 48?

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A. enzyme choice map digestion gel comparison troubleshooting

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Cutting of DNA में enzyme choice से gel interpretation तक पूरी chain समझनी चाहिए। Controls result को reliable बनाते हैं। / In Cutting of DNA the full chain from enzyme choice to gel interpretation should be understood. Controls make results reliable.

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Cutting of DNA level 48 का final summary क्या है?

What is the final summary of Cutting of DNA level 48?

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A. सही enzyme और condition से DNA predictable fragments में कटता है और gel से verify होता हैWith correct enzyme and condition DNA cuts into predictable fragments and is verified by gel

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Restriction digestion cloning planning और verification दोनों में important है। Accurate maps controls और records जरूरी हैं। / Restriction digestion is important in both cloning planning and verification. Accurate maps controls and records are needed.

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FAQs

Class 11 Biotechnology Quiz FAQs

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This level is designed for 50 active questions. Currently 50 questions are available for the selected class and difficulty.

Is there a timer in this quiz?

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