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Class 11 Biotechnology - Principles of Biotechnology - Restriction Enzymes Easy Quiz

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एक छात्र ने कहा कि restriction enzymes DNA को कहीं भी काटते हैं। सही सुधार क्या है?

A student says restriction enzymes cut DNA anywhere. What is the correct correction?

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B. वे specific recognition sites पर cut करते हैंThey cut at specific recognition sites

Explanation

Simple Explanation

Restriction enzymes random cutters नहीं हैं। वे specific DNA recognition sites पहचानते हैं। / Restriction enzymes are not random cutters. They recognize specific DNA recognition sites.

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किस laboratory step में restriction enzyme सीधे उपयोग होगा?

In which laboratory step will a restriction enzyme be directly used?

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A. DNA को selected site पर cut करनाCutting DNA at a selected site

Explanation

Simple Explanation

Restriction enzyme DNA को selected restriction site पर cut करता है। यह cloning का starting step हो सकता है। / A restriction enzyme cuts DNA at a selected restriction site. This can be a starting step in cloning.

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एक vector और insert को same enzyme से cut करने का reason क्या है?

What is the reason for cutting a vector and insert with the same enzyme?

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A. दोनों में compatible ends बनानाTo make compatible ends in both

Explanation

Simple Explanation

Same restriction enzyme compatible ends बना सकता है। इससे insert-vector joining आसान होती है। / The same restriction enzyme can create compatible ends. This makes insert-vector joining easier.

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अगर vector cut हो गया लेकिन insert ligate नहीं हुआ तो क्या कमी हो सकती है?

If vector is cut but insert does not ligate what may be missing?

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A. DNA ligase या compatible endsDNA ligase or compatible ends

Explanation

Simple Explanation

Cut ends को join करने के लिए DNA ligase और compatible ends जरूरी हैं। Restriction enzyme केवल cutting करता है। / DNA ligase and compatible ends are needed to join cut ends. Restriction enzyme only performs cutting.

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restriction enzyme action के बाद gene cloning में अगला joining enzyme कौन सा है?

After restriction enzyme action which joining enzyme is next in gene cloning?

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A. DNA ligase

Explanation

Simple Explanation

DNA ligase cut DNA fragments को जोड़ता है। परीक्षा में cut और join enzymes अलग पहचानें। / DNA ligase joins cut DNA fragments. In exams distinguish cutting and joining enzymes.

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कौन सा option blunt end का simple diagram idea बताता है?

Which option gives the simple diagram idea of a blunt end?

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A. दोनों strands सीधे same point पर cutBoth strands cut straight at the same point

Explanation

Simple Explanation

Blunt end में overhang नहीं होता। दोनों strands लगभग same position पर cut होते हैं। / A blunt end has no overhang. Both strands are cut almost at the same position.

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कौन सा option sticky end का simple diagram idea बताता है?

Which option gives the simple diagram idea of a sticky end?

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A. एक strand में छोटा overhangA small overhang on one strand

Explanation

Simple Explanation

Sticky end में single stranded overhang होता है। यह overhang complementary sequence से pair कर सकता है। / A sticky end has a single stranded overhang. This overhang can pair with a complementary sequence.

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कौन सा कथन EcoRI और DNA ligase के संबंध में सही है?

Which statement is correct about EcoRI and DNA ligase?

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A. EcoRI cuts DNA and ligase joins DNA

Explanation

Simple Explanation

EcoRI restriction enzyme है इसलिए cut करता है। DNA ligase joining enzyme है। / EcoRI is a restriction enzyme so it cuts. DNA ligase is a joining enzyme.

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कौन सा factor restriction enzyme specificity को define करता है?

Which factor defines restriction enzyme specificity?

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A. recognition sequence

Explanation

Simple Explanation

Specificity इस बात पर निर्भर है कि enzyme कौन सा DNA sequence पहचानता है। यही उसका recognition sequence है। / Specificity depends on which DNA sequence the enzyme recognizes. That is its recognition sequence.

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किस case में restriction enzyme expected cut नहीं करेगा?

In which case will a restriction enzyme not make the expected cut?

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A. recognition site absent हैRecognition site is absent

Explanation

Simple Explanation

Recognition site न हो तो enzyme के पास cut target नहीं होगा। इसलिए expected cut नहीं बनेगा। / Without a recognition site the enzyme has no cut target. Therefore expected cut will not occur.

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अगर DNA sample में methylation है तो restriction analysis में क्या complication हो सकती है?

If a DNA sample has methylation what complication can occur in restriction analysis?

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A. कुछ sites cut न होंSome sites may not cut

Explanation

Simple Explanation

Methylation कुछ restriction enzymes को cut करने से रोक सकती है। इससे expected bands बदल सकते हैं। / Methylation can prevent some restriction enzymes from cutting. This may change expected bands.

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कौन सा statement restriction enzyme nomenclature के लिए सही है?

Which statement is correct for restriction enzyme nomenclature?

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A. नाम source organism से जुड़ा होता हैName is related to the source organism

Explanation

Simple Explanation

Restriction enzyme names source genus species और strain से जुड़ सकते हैं। EcoRI इसका common example है। / Restriction enzyme names can relate to source genus species and strain. EcoRI is a common example.

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EcoRI में I किस बात की ओर संकेत करता है?

In EcoRI what does I indicate?

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A. उस strain से isolate किया गया पहला enzymeFirst enzyme isolated from that strain

Explanation

Simple Explanation

Roman numeral isolation order को दर्शा सकता है। EcoRI में I उस source से first enzyme का संकेत है। / The Roman numeral can show isolation order. In EcoRI I indicates the first enzyme from that source.

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HindIII और EcoRI में क्या समानता है?

What is common between HindIII and EcoRI?

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A. दोनों restriction enzymes हैंBoth are restriction enzymes

Explanation

Simple Explanation

HindIII और EcoRI दोनों DNA cutting restriction enzymes हैं। इनके recognition sequences अलग हैं। / HindIII and EcoRI are both DNA-cutting restriction enzymes. Their recognition sequences are different.

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किस enzyme का recognition sequence AAGCTT है?

Which enzyme has the recognition sequence AAGCTT?

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B. HindIII

Explanation

Simple Explanation

HindIII AAGCTT sequence पहचानता है। Sequence matching questions में इसे याद रखें। / HindIII recognizes the AAGCTT sequence. Remember it for sequence matching questions.

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किस enzyme का recognition sequence GGATCC है?

Which enzyme has the recognition sequence GGATCC?

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A. BamHI

Explanation

Simple Explanation

BamHI GGATCC sequence पहचानता है। यह restriction enzyme examples में common है। / BamHI recognizes the GGATCC sequence. It is common among restriction enzyme examples.

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किस enzyme का recognition sequence GGCC से जुड़ा है?

Which enzyme is linked with the recognition sequence GGCC?

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C. HaeIII

Explanation

Simple Explanation

HaeIII GGCC sequence के साथ पढ़ा जाता है। यह blunt end example भी है। / HaeIII is studied with the GGCC sequence. It is also a blunt end example.

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किस condition में restriction fragments की संख्या बढ़ सकती है?

In which condition can the number of restriction fragments increase?

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A. DNA में अधिक recognition sites होंDNA has more recognition sites

Explanation

Simple Explanation

अधिक recognition sites पर अधिक cuts हो सकते हैं। इससे fragments की संख्या बढ़ सकती है। / More recognition sites can lead to more cuts. This can increase the number of fragments.

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यदि mutation से restriction site खत्म हो जाए तो fragment pattern में क्या हो सकता है?

If a mutation removes a restriction site what can happen to the fragment pattern?

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A. एक cut कम हो सकता हैOne cut may be lost

Explanation

Simple Explanation

Restriction site हटने पर expected cut नहीं होगा। इससे larger fragment दिख सकता है। / When a restriction site is removed the expected cut will not occur. This may show a larger fragment.

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यदि mutation नया restriction site बना दे तो क्या हो सकता है?

If a mutation creates a new restriction site what may happen?

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A. extra cut बन सकता हैAn extra cut may form

Explanation

Simple Explanation

नया restriction site additional cut दे सकता है। इससे gel pattern बदल सकता है। / A new restriction site can give an additional cut. This can change the gel pattern.

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किस option में RFLP का simple meaning सही है?

Which option gives the simple meaning of RFLP correctly?

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A. restriction fragments की length variationLength variation of restriction fragments

Explanation

Simple Explanation

RFLP में restriction enzyme से बने DNA fragments की length में अंतर देखा जाता है। यह DNA analysis में उपयोगी है। / In RFLP differences in lengths of DNA fragments made by restriction enzymes are observed. It is useful in DNA analysis.

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DNA fingerprinting में restriction fragments क्यों compare किए जाते हैं?

Why are restriction fragments compared in DNA fingerprinting?

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A. व्यक्ति-विशेष DNA pattern देखने के लिएTo see individual-specific DNA pattern

Explanation

Simple Explanation

Restriction fragments का pattern अलग व्यक्तियों में अलग हो सकता है। इसलिए comparison identification में मदद कर सकता है। / The pattern of restriction fragments can differ among individuals. Thus comparison can help in identification.

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कौन सा option restriction enzyme use की correct application नहीं है?

Which option is not a correct application of restriction enzyme use?

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Correct Answer

D. starch cooking

Explanation

Simple Explanation

Restriction enzymes DNA-related techniques में उपयोगी हैं। Starch cooking उनका application नहीं है। / Restriction enzymes are useful in DNA-related techniques. Starch cooking is not their application.

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restriction enzyme और cloning vector का संबंध क्या है?

What is the relation between restriction enzyme and cloning vector?

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A. restriction enzyme vector को cut कर सकता हैRestriction enzyme can cut the vector

Explanation

Simple Explanation

Cloning vector को insert के लिए open करने में restriction enzyme उपयोगी होता है। यह cloning का basic step है। / A restriction enzyme is useful to open a cloning vector for an insert. This is a basic step in cloning.

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restriction enzyme द्वारा cut vector self-ligation कर सकता है। इसे घटाने के लिए कौन सा idea उपयोगी हो सकता है?

A vector cut by restriction enzyme can self-ligate. Which idea can help reduce this?

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

Explanation

Simple Explanation

दो अलग incompatible ends vector की self-ligation घटा सकते हैं। यह cloning strategy में उपयोगी है। / Two different incompatible ends can reduce vector self-ligation. This is useful in cloning strategy.

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अगर insert और vector के sticky ends complementary हैं तो पहला weak joining किससे होता है?

If sticky ends of insert and vector are complementary what first weak joining occurs by?

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A. base pairing

Explanation

Simple Explanation

Complementary sticky ends hydrogen bonding द्वारा base pairing कर सकते हैं। Permanent joining के लिए DNA ligase चाहिए। / Complementary sticky ends can base pair through hydrogen bonding. DNA ligase is needed for permanent joining.

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restriction enzyme किस bond को DNA backbone में काटता है?

Which bond does a restriction enzyme cut in the DNA backbone?

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A. phosphodiester bond

Explanation

Simple Explanation

Restriction enzymes DNA के sugar-phosphate backbone में phosphodiester bonds काटते हैं। यह DNA structure से जुड़ा fact है। / Restriction enzymes cut phosphodiester bonds in the sugar-phosphate backbone of DNA. This fact is linked with DNA structure.

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किस option में restriction enzyme की protein nature का सही implication है?

Which option gives the correct implication of protein nature of restriction enzymes?

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A. heat से activity घट सकती हैHeat can reduce activity

Explanation

Simple Explanation

Restriction enzymes protein enzymes हैं। अधिक heat या गलत conditions activity घटा सकती हैं। / Restriction enzymes are protein enzymes. High heat or wrong conditions can reduce activity.

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किस temperature पर कई common bacterial restriction enzymes work करते हैं?

At what temperature do many common bacterial restriction enzymes work?

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A. लगभग 37 डिग्री सेल्सियसAbout 37 degrees Celsius

Explanation

Simple Explanation

कई bacterial enzymes 37 डिग्री सेल्सियस के आसपास active रहते हैं। फिर भी exact optimum enzyme-specific हो सकता है। / Many bacterial enzymes are active around 37 degrees Celsius. However the exact optimum can be enzyme-specific.

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restriction digestion में incubation का उद्देश्य क्या है?

What is the purpose of incubation in restriction digestion?

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A. enzyme को DNA cut करने का समय देनाGiving enzyme time to cut DNA

Explanation

Simple Explanation

Incubation में enzyme उचित condition में DNA पर action करता है। Time और temperature practical factors हैं। / During incubation the enzyme acts on DNA under suitable conditions. Time and temperature are practical factors.

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किस कारण एक छोटा चार-base recognition sequence genome में अधिक बार मिल सकता है?

Why can a short four-base recognition sequence occur more often in a genome?

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A. क्योंकि छोटा sequence statistically अधिक frequent हो सकता हैBecause a shorter sequence can be statistically more frequent

Explanation

Simple Explanation

Short recognition sequences longer sequences की तुलना में अधिक बार मिल सकते हैं। इससे अधिक cut sites संभव हैं। / Short recognition sequences can occur more often than longer sequences. This can lead to more cut sites.

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छह-base recognition sequence की तुलना में आठ-base sequence सामान्यतः क्या करेगा?

Compared with a six-base recognition sequence what will an eight-base sequence generally do?

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A. कम frequent sites देगाGive less frequent sites

Explanation

Simple Explanation

Longer recognition sequence कम बार मिलने की संभावना रखता है। इससे fragments की संख्या प्रभावित हो सकती है। / A longer recognition sequence is less likely to occur frequently. This can affect the number of fragments.

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अगर restriction enzyme inactive हो तो expected result क्या होगा?

If a restriction enzyme is inactive what is the expected result?

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A. DNA properly cut नहीं होगाDNA will not be cut properly

Explanation

Simple Explanation

Inactive enzyme recognition site होने पर भी cut नहीं कर सकता। Activity restriction digestion की basic requirement है। / An inactive enzyme cannot cut even if the recognition site is present. Activity is a basic requirement of restriction digestion.

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gel में uncut plasmid band दिखने का एक कारण क्या हो सकता है?

What can be one reason for seeing an uncut plasmid band in gel?

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A. incomplete digestion

Explanation

Simple Explanation

Uncut band दिखे तो कुछ plasmid molecules cut नहीं हुए हो सकते हैं। यह incomplete digestion का संकेत हो सकता है। / If an uncut band appears some plasmid molecules may not have been cut. This can indicate incomplete digestion.

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किस practical में restriction enzyme और gel electrophoresis साथ दिखेंगे?

In which practical will restriction enzyme and gel electrophoresis appear together?

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A. DNA fragment analysis

Explanation

Simple Explanation

पहले restriction enzyme DNA cut करता है और फिर gel electrophoresis fragments अलग करता है। दोनों DNA analysis में जुड़े हैं। / First the restriction enzyme cuts DNA and then gel electrophoresis separates fragments. Both are linked in DNA analysis.

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restriction enzymes को molecular scissors कहने का सबसे सही कारण क्या है?

What is the best reason for calling restriction enzymes molecular scissors?

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A. वे DNA molecules को cut करते हैंThey cut DNA molecules

Explanation

Simple Explanation

Molecular scissors नाम DNA cutting function के कारण है। यह Class 11 biotechnology का basic term है। / The name molecular scissors comes from their DNA cutting function. This is a basic term in Class 11 biotechnology.

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palindrome recognition का restriction enzyme से क्या संबंध है?

What is the relation of palindrome recognition with restriction enzymes?

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A. कई restriction enzymes palindromic DNA sites पहचानते हैंMany restriction enzymes recognize palindromic DNA sites

Explanation

Simple Explanation

कई recognition sites palindromic होते हैं। यह restriction enzymes की sequence recognition से जुड़ा है। / Many recognition sites are palindromic. This is linked with sequence recognition by restriction enzymes.

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किस विकल्प में bacterial DNA protection का सही pair है?

Which option gives the correct pair for bacterial DNA protection?

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A. methylase और methylationMethylase and methylation

Explanation

Simple Explanation

Methylase bacterial DNA को methylate कर सकता है। इससे restriction enzyme अपना DNA नहीं काटता। / Methylase can methylate bacterial DNA. This prevents restriction enzymes from cutting self DNA.

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foreign DNA में protection absent हो तो bacterial restriction enzyme क्या कर सकता है?

If protection is absent in foreign DNA what can a bacterial restriction enzyme do?

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A. foreign DNA cut कर सकता हैIt can cut foreign DNA

Explanation

Simple Explanation

Foreign DNA methylated न हो तो restriction enzyme उसे पहचानकर cut कर सकता है। यह bacterial defense का हिस्सा है। / If foreign DNA is not methylated the restriction enzyme can recognize and cut it. This is part of bacterial defense.

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कौन सा statement restriction enzyme examples के लिए सही है?

Which statement is correct for restriction enzyme examples?

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A. EcoRI BamHI HindIII common examples हैंEcoRI BamHI HindIII are common examples

Explanation

Simple Explanation

EcoRI BamHI और HindIII restriction enzymes के common examples हैं। बाकी options DNA-cutting restriction enzymes नहीं हैं। / EcoRI BamHI and HindIII are common examples of restriction enzymes. The other options are not DNA-cutting restriction enzymes.

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restriction enzyme की activity को कौन सी चीज प्रभावित कर सकती है?

What can affect restriction enzyme activity?

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A. pH temperature और buffer conditionpH temperature and buffer condition

Explanation

Simple Explanation

Enzymes reaction conditions के प्रति sensitive हो सकते हैं। pH temperature और buffer activity को प्रभावित कर सकते हैं। / Enzymes can be sensitive to reaction conditions. pH temperature and buffer can affect activity.

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किस option में restriction enzyme का function और application दोनों सही हैं?

Which option correctly gives both function and application of restriction enzyme?

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A. DNA cut करना और gene cloning में उपयोगCutting DNA and use in gene cloning

Explanation

Simple Explanation

Restriction enzymes DNA cut करते हैं और gene cloning में useful हैं। यह topic का central link है। / Restriction enzymes cut DNA and are useful in gene cloning. This is the central link of the topic.

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कौन सा question restriction enzyme topic में सबसे exam-oriented है?

Which question is most exam-oriented in the restriction enzyme topic?

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A. EcoRI किस sequence को पहचानता हैWhich sequence does EcoRI recognize

Explanation

Simple Explanation

EcoRI और recognition sequence matching exam में common है। इसे direct fact के रूप में revise करें। / EcoRI and recognition sequence matching is common in exams. Revise it as a direct fact.

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किस option में vector और restriction enzyme का correct sequence है?

Which option gives the correct sequence involving vector and restriction enzyme?

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A. restriction enzyme vector को cut करता है फिर insert ligate होता हैRestriction enzyme cuts vector then insert is ligated

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Cloning में vector को restriction enzyme से cut किया जा सकता है। फिर insert DNA ligase से जोड़ा जाता है। / In cloning a vector can be cut by a restriction enzyme. Then insert is joined by DNA ligase.

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किस scenario में same sticky ends के कारण insert दोनों orientations में लग सकता है?

In which scenario can the insert join in both orientations because of same sticky ends?

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A. insert के दोनों ends समान compatible होंBoth ends of insert are same compatible type

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Same compatible ends orientation control घटा सकते हैं। Directional cloning इस risk को कम कर सकती है। / Same compatible ends can reduce orientation control. Directional cloning can reduce this risk.

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restriction enzyme और exonuclease में basic difference क्या है?

What is the basic difference between a restriction enzyme and an exonuclease?

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A. restriction enzyme अंदर specific cut कर सकता हैRestriction enzyme can cut internally at specific sites

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Restriction enzymes endonucleases की तरह DNA के अंदर cut करते हैं। Exonucleases nucleic acid ends से nucleotides हटाते हैं। / Restriction enzymes cut internally like endonucleases. Exonucleases remove nucleotides from nucleic acid ends.

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कौन सा option restriction enzyme topic का core formula-like rule बताता है?

Which option gives a core rule-like idea in restriction enzyme topic?

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A. linear DNA fragments equal cuts plus one

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Linear DNA में complete digestion के बाद fragments cuts से एक अधिक होते हैं। इसे simple mapping MCQs में apply करें। / In linear DNA after complete digestion fragments are one more than cuts. Apply this in simple mapping MCQs.

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circular DNA mapping में simple rule क्या है?

What is the simple rule in circular DNA mapping?

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A. complete digestion में fragments cuts के बराबरIn complete digestion fragments equal cuts

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Circular DNA में complete digestion पर fragments की संख्या cut sites के बराबर होती है। यह plasmid questions में useful है। / In circular DNA after complete digestion fragments equal the number of cut sites. This is useful in plasmid questions.

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किस option में restriction enzyme और palindromic site का correct link है?

Which option correctly links restriction enzyme and palindromic site?

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A. many enzymes recognize palindromic DNA sequences

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कई restriction enzymes palindromic DNA sequences को recognition sites की तरह पहचानते हैं। यह basic concept है। / Many restriction enzymes recognize palindromic DNA sequences as recognition sites. This is a basic concept.

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कौन सा अंतिम revision point सबसे सही है?

Which final revision point is most correct?

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A. Restriction enzymes bacteria से जुड़े DNA cutting tools हैंRestriction enzymes are bacteria-linked DNA cutting tools

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Restriction enzymes का source bacteria और function DNA cutting है। यही easy level का सबसे important summary है। / The source of restriction enzymes is bacteria and the function is DNA cutting. This is the most important easy-level summary.

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FAQs

Class 11 Biotechnology Quiz FAQs

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