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

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DNA isolation में सबसे पहले किस बात की planning करनी चाहिए?

What should be planned first in DNA isolation?

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A. sample type और required DNA typeSample type and required DNA type

Explanation

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Sample type और DNA type method selection को प्रभावित करते हैं। Genomic और plasmid DNA की approaches अलग हो सकती हैं। / Sample type and DNA type affect method selection. Genomic and plasmid DNA approaches can differ.

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Total DNA extraction का क्या अर्थ है?

What does total DNA extraction mean?

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B. sample से सभी उपलब्ध DNA types निकालनाExtracting all available DNA types from a sample

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Total DNA में nuclear mitochondrial और कभी chloroplast DNA शामिल हो सकते हैं। यह sample पर निर्भर करता है। / Total DNA can include nuclear mitochondrial and sometimes chloroplast DNA. It depends on the sample.

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Plant total DNA extraction में chloroplast DNA क्यों आ सकता है?

Why can chloroplast DNA appear in plant total DNA extraction?

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A. chloroplast में भी DNA होता हैChloroplast also has DNA

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Plant cells में chloroplasts genetic material रखते हैं। Total DNA extraction में organelle DNA भी आ सकता है। / Plant cells have chloroplasts that contain genetic material. Organelle DNA can appear in total DNA extraction.

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Eukaryotic total DNA में mitochondrial DNA क्यों मिल सकता है?

Why can mitochondrial DNA be present in eukaryotic total DNA?

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A. mitochondria में अपना DNA होता हैMitochondria have their own DNA

Explanation

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Mitochondria में genetic material होता है। Total DNA extraction में nuclear DNA के साथ यह भी मिल सकता है। / Mitochondria contain genetic material. In total DNA extraction it can come with nuclear DNA.

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DNA isolation में extraction buffer का चुनाव किस पर निर्भर करता है?

On what does the choice of extraction buffer depend in DNA isolation?

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A. sample type और contaminants परOn sample type and contaminants

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Simple Explanation

Different samples में cell wall और impurities अलग हो सकती हैं। इसलिए buffer composition भी बदल सकता है। / Different samples can have different cell walls and impurities. Therefore buffer composition can change.

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Plant DNA isolation में CTAB buffer कब अधिक जरूरी हो सकता है?

When can CTAB buffer be more necessary in plant DNA isolation?

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A. high polysaccharide tissues मेंIn high polysaccharide tissues

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CTAB polysaccharides और कुछ plant impurities हटाने में मदद करता है। इसलिए ऐसे tissues में useful है। / CTAB helps remove polysaccharides and some plant impurities. Therefore it is useful in such tissues.

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Mucilaginous plant tissue से DNA निकालते समय मुख्य challenge क्या हो सकता है?

What can be a main challenge while extracting DNA from mucilaginous plant tissue?

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B. polysaccharide contamination

Explanation

Simple Explanation

Mucilaginous tissues में polysaccharides अधिक हो सकते हैं। ये DNA purification और PCR में बाधा डाल सकते हैं। / Mucilaginous tissues can have high polysaccharides. These can interfere with DNA purification and PCR.

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Blood sample से DNA isolation में कौन सी cells DNA source होती हैं?

In DNA isolation from blood which cells are the DNA source?

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C. white blood cells

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Mammalian mature red blood cells में nucleus नहीं होता। White blood cells DNA source होती हैं। / Mammalian mature red blood cells lack nucleus. White blood cells are the DNA source.

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मानव mature RBC DNA isolation के लिए अच्छे source क्यों नहीं हैं?

Why are human mature RBCs not a good source for DNA isolation?

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D. उनमें nucleus नहीं होताThey lack nucleus

Explanation

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Mammalian mature RBCs nucleus नहीं रखते इसलिए genomic DNA source नहीं होते। WBCs बेहतर source हैं। / Mammalian mature RBCs lack nucleus so they are not a genomic DNA source. WBCs are better source.

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Cheek cell DNA isolation में कौन सा material source होता है?

What is the source material in cheek cell DNA isolation?

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A. buccal epithelial cells

Explanation

Simple Explanation

Cheek swab buccal epithelial cells देता है। इन cells में nucleus और DNA होता है। / A cheek swab gives buccal epithelial cells. These cells have nuclei and DNA.

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Hair sample से DNA isolation में root क्यों important है?

Why is the root important in DNA isolation from hair sample?

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A. root में living cells और DNA हो सकता हैRoot may contain living cells and DNA

Explanation

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Hair shaft में nuclear DNA कम या degraded हो सकता है। Root cells DNA source हो सकती हैं। / The hair shaft can have little or degraded nuclear DNA. Root cells can be a DNA source.

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DNA isolation में sample size बहुत ज्यादा होने से क्या समस्या हो सकती है?

What problem can occur if sample size is too large in DNA isolation?

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A. buffer capacity overload हो सकती हैBuffer capacity can be overloaded

Explanation

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बहुत ज्यादा sample lysis और purification को inefficient बना सकता है। Protocol के अनुसार sample amount रखें। / Too much sample can make lysis and purification inefficient. Keep sample amount according to protocol.

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Sample amount बहुत कम हो तो क्या समस्या हो सकती है?

What problem can occur if sample amount is too low?

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A. DNA yield कम हो सकती हैDNA yield may be low

Explanation

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कम sample से DNA amount कम मिल सकता है। Low-yield samples में careful recovery जरूरी है। / Low sample amount can give less DNA. Careful recovery is needed for low-yield samples.

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DNA extraction में incubation time का क्या महत्व है?

What is the importance of incubation time in DNA extraction?

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A. lysis और enzyme action complete करने में मददHelps complete lysis and enzyme action

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Proper incubation lysis और protein digestion बेहतर कर सकता है। Too short time low yield दे सकता है। / Proper incubation can improve lysis and protein digestion. Too short time can give low yield.

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Lysis incubation बहुत लंबा होने पर क्या risk हो सकता है?

What can be the risk if lysis incubation is too long?

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A. DNA degradation risk बढ़ सकता हैRisk of DNA degradation can increase

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बहुत लंबी incubation और improper conditions DNA quality घटा सकती हैं। Protocol timing follow करें। / Very long incubation and improper conditions can reduce DNA quality. Follow protocol timing.

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Temperature control DNA isolation में क्यों जरूरी है?

Why is temperature control necessary in DNA isolation?

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A. nuclease activity और enzyme steps manage करने के लिएTo manage nuclease activity and enzyme steps

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कुछ steps cold conditions चाहते हैं और कुछ enzyme steps specific temperature चाहते हैं। Temperature DNA quality पर असर डालता है। / Some steps need cold conditions and some enzyme steps need specific temperature. Temperature affects DNA quality.

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DNA isolation में ice पर sample रखने का एक लाभ क्या है?

What is one benefit of keeping samples on ice in DNA isolation?

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A. nuclease activity धीमी हो सकती हैNuclease activity may slow down

Explanation

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Cold condition DNA degradation कम करने में मदद कर सकती है। इसे nuclease control से जोड़ें। / Cold condition can help reduce DNA degradation. Link it with nuclease control.

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Boiling method से DNA extraction कब limited हो सकता है?

When can boiling method be limited for DNA extraction?

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A. जब high purity DNA चाहिएWhen high purity DNA is needed

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Boiling crude DNA release कर सकता है पर impurities रह सकती हैं। High-quality work के लिए purification जरूरी होती है। / Boiling can release crude DNA but impurities may remain. Purification is needed for high-quality work.

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Crude DNA extract का अर्थ क्या है?

What does crude DNA extract mean?

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B. DNA containing mixture with impurities

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Crude extract में DNA के साथ proteins salts और inhibitors हो सकते हैं। Downstream use से पहले cleanup जरूरत हो सकती है। / Crude extract can contain DNA along with proteins salts and inhibitors. Cleanup may be needed before downstream use.

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Pure DNA extract का मुख्य गुण क्या है?

What is the main feature of a pure DNA extract?

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C. low contaminant level and usable DNA

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Pure DNA downstream reactions जैसे PCR और cloning के लिए बेहतर होता है। Purity ratios और gel check मदद करते हैं। / Pure DNA is better for downstream reactions like PCR and cloning. Purity ratios and gel check help.

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DNA isolation में yield का अर्थ क्या है?

What does yield mean in DNA isolation?

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D. प्राप्त DNA की मात्राAmount of DNA obtained

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Yield बताता है कि isolation से कितना DNA मिला। इसे purity और integrity के साथ देखना चाहिए। / Yield tells how much DNA was obtained from isolation. It should be seen with purity and integrity.

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DNA purity का अर्थ क्या है?

What does DNA purity mean?

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A. DNA sample में contaminants कम होनाHaving fewer contaminants in DNA sample

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Purity बताती है कि sample में protein salts phenol या RNA जैसी impurities कितनी कम हैं। यह downstream reactions के लिए important है। / Purity tells how low impurities like protein salts phenol or RNA are in the sample. It is important for downstream reactions.

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DNA integrity का सबसे सही अर्थ क्या है?

What is the most correct meaning of DNA integrity?

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B. DNA कितना intact या broken हैHow intact or broken DNA is

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Integrity DNA fragmentation की स्थिति बताती है। Gel electrophoresis इसे check करने में मदद करता है। / Integrity shows the fragmentation status of DNA. Gel electrophoresis helps check it.

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DNA isolation के बाद high yield लेकिन degraded DNA क्यों समस्या है?

Why is high yield but degraded DNA a problem after DNA isolation?

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C. कुछ downstream uses के लिए DNA unusable हो सकता हैDNA may be unusable for some downstream uses

Explanation

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High amount भी useful नहीं अगर DNA बहुत fragmented है। Integrity quality का important part है। / High amount is not useful if DNA is highly fragmented. Integrity is an important part of quality.

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DNA extraction में sample contamination का सबसे अच्छा बचाव क्या है?

What is the best prevention against sample contamination in DNA extraction?

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D. aseptic handling और fresh tips use करनाUsing aseptic handling and fresh tips

Explanation

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Aseptic handling और fresh tips contamination कम करते हैं। यह reliable DNA results के लिए जरूरी है। / Aseptic handling and fresh tips reduce contamination. This is needed for reliable DNA results.

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DNA extraction में sample tubes कम समय के लिए क्यों open रखनी चाहिए?

Why should sample tubes be kept open for a short time in DNA extraction?

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A. contamination घटाने के लिएTo reduce contamination

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Open tubes airborne contaminants और nucleases ला सकते हैं। Short careful handling sample को सुरक्षित रखती है। / Open tubes can bring airborne contaminants and nucleases. Short careful handling keeps samples safe.

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DNA isolation में separate work areas कब helpful हो सकते हैं?

When can separate work areas be helpful in DNA isolation?

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A. contamination-sensitive work मेंIn contamination-sensitive work

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Pre-PCR और post-PCR areas अलग रखने से contamination risk घट सकता है। Sensitive DNA work में यह useful है। / Keeping pre-PCR and post-PCR areas separate can reduce contamination risk. This is useful in sensitive DNA work.

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DNA extraction blank control positive आए तो क्या संकेत है?

If a DNA extraction blank control is positive what does it indicate?

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A. reagent या handling contaminationReagent or handling contamination

Explanation

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Blank में DNA नहीं होना चाहिए। Positive signal contamination की ओर संकेत करता है। / A blank should not contain DNA. A positive signal indicates contamination.

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Positive extraction control fail हो जाए तो क्या suspect करेंगे?

If a positive extraction control fails what should be suspected?

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A. method या reagent problemMethod or reagent problem

Explanation

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Known sample से DNA मिलना चाहिए। Fail होने पर extraction method या reagents check करें। / A known sample should yield DNA. If it fails check extraction method or reagents.

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DNA isolation में internal standard क्यों useful हो सकता है?

Why can an internal standard be useful in DNA isolation?

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A. extraction efficiency monitor करने के लिएTo monitor extraction efficiency

Explanation

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Internal standard process performance का संकेत दे सकता है। इससे comparison और troubleshooting आसान होती है। / An internal standard can indicate process performance. This makes comparison and troubleshooting easier.

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DNA isolation में inhibitor removal क्यों जरूरी है?

Why is inhibitor removal necessary in DNA isolation?

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A. downstream PCR और enzyme reactions के लिएFor downstream PCR and enzyme reactions

Explanation

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Inhibitors PCR और restriction enzymes को रोक सकते हैं। Clean DNA reaction success बढ़ाता है। / Inhibitors can stop PCR and restriction enzymes. Clean DNA increases reaction success.

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DNA isolation में humic acids कब problem हो सकते हैं?

When can humic acids be a problem in DNA isolation?

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A. soil या environmental samples मेंIn soil or environmental samples

Explanation

Simple Explanation

Soil samples में humic acids PCR inhibitors हो सकते हैं। Special cleanup की जरूरत हो सकती है। / In soil samples humic acids can be PCR inhibitors. Special cleanup may be needed.

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Soil DNA extraction में inhibitor समस्या को कैसे घटाया जा सकता है?

How can inhibitor problems be reduced in soil DNA extraction?

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A. special cleanup steps सेBy special cleanup steps

Explanation

Simple Explanation

Soil samples में humic substances हो सकते हैं। Cleanup steps inhibitors घटाते हैं। / Soil samples may contain humic substances. Cleanup steps reduce inhibitors.

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DNA isolation में food sample से क्या challenge हो सकता है?

What challenge can occur with food samples in DNA isolation?

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A. processed sample में DNA fragmented हो सकता हैDNA may be fragmented in processed sample

Explanation

Simple Explanation

Processing heat और chemicals DNA को degrade कर सकते हैं। Extraction method sample type के अनुसार चुनें। / Processing heat and chemicals can degrade DNA. Choose extraction method according to sample type.

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Forensic DNA samples में contamination control क्यों बहुत जरूरी है?

Why is contamination control very important in forensic DNA samples?

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A. small DNA amounts में गलत profile आ सकता हैWrong profile can occur with small DNA amounts

Explanation

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Forensic samples में DNA amount कम हो सकता है। Contamination result को गलत कर सकती है। / Forensic samples can have low DNA amount. Contamination can make the result wrong.

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DNA isolation में low template samples के लिए क्या practice useful है?

What practice is useful for low template samples in DNA isolation?

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A. low-bind tubes और careful pipettingLow-bind tubes and careful pipetting

Explanation

Simple Explanation

Low DNA amount में sample loss बड़ा issue होता है। Low-bind tubes और careful handling recovery बचाते हैं। / In low DNA amount sample loss is a major issue. Low-bind tubes and careful handling preserve recovery.

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DNA isolation में degraded sample से PCR फिर भी कब possible हो सकता है?

When can PCR still be possible from a degraded DNA sample?

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A. अगर target छोटा fragment होIf target is a short fragment

Explanation

Simple Explanation

Degraded DNA में छोटे fragments बचे हो सकते हैं। Short amplicon PCR कभी possible होता है। / Short fragments may remain in degraded DNA. Short amplicon PCR can sometimes be possible.

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Long-read sequencing के लिए DNA isolation में क्या अधिक महत्वपूर्ण है?

What is more important in DNA isolation for long-read sequencing?

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A. high molecular weight intact DNA

Explanation

Simple Explanation

Long-read sequencing को लंबे intact DNA fragments चाहिए। Shearing से बचना बहुत important है। / Long-read sequencing needs long intact DNA fragments. Avoiding shearing is very important.

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Short-read sequencing के लिए DNA isolation में क्या जरूरी रहता है?

What remains important in DNA isolation for short-read sequencing?

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A. clean DNA और correct concentrationClean DNA and correct concentration

Explanation

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Short-read sequencing में भी contaminants library preparation को affect कर सकते हैं। Clean quantified DNA जरूरी है। / Even in short-read sequencing contaminants can affect library preparation. Clean quantified DNA is necessary.

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DNA isolation में downstream application का मतलब क्या है?

What does downstream application mean in DNA isolation?

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A. DNA मिलने के बाद किया जाने वाला प्रयोगExperiment done after obtaining DNA

Explanation

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PCR cloning sequencing जैसे प्रयोग downstream applications हैं। DNA quality इनके अनुसार चाहिए। / PCR cloning sequencing are downstream applications. DNA quality is needed according to them.

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किस downstream application को highly pure DNA की जरूरत होती है?

Which downstream application needs highly pure DNA?

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A. PCR और restriction digestionPCR and restriction digestion

Explanation

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PCR और restriction digestion impurities से inhibit हो सकते हैं। इसलिए clean DNA जरूरी है। / PCR and restriction digestion can be inhibited by impurities. Therefore clean DNA is needed.

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DNA isolation के बाद sample को खुला छोड़ने से क्या risk है?

What is the risk of leaving a DNA sample open after isolation?

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A. contamination और evaporationContamination and evaporation

Explanation

Simple Explanation

Open sample contaminants ले सकता है और volume कम हो सकता है। Tube को properly close और store करें। / An open sample can take contaminants and lose volume. Close and store the tube properly.

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DNA storage में repeated freeze-thaw क्यों avoid किया जाता है?

Why is repeated freeze-thaw avoided in DNA storage?

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A. DNA damage या degradation risk कम करने के लिएTo reduce risk of DNA damage or degradation

Explanation

Simple Explanation

बार-बार freeze-thaw DNA integrity को प्रभावित कर सकता है। Aliquots बनाना बेहतर है। / Repeated freeze-thaw can affect DNA integrity. Making aliquots is better.

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DNA sample में storage date लिखना क्यों जरूरी है?

Why is writing storage date on a DNA sample important?

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A. sample age और tracking के लिएFor sample age and tracking

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Date से पता चलता है sample कब isolated या stored हुआ। यह quality tracking में मदद करता है। / The date shows when the sample was isolated or stored. It helps in quality tracking.

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DNA isolation report में कौन सी values लिखना useful है?

Which values are useful to write in a DNA isolation report?

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A. yield purity ratio और storage detailYield purity ratio and storage detail

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Report में DNA amount purity ratios और storage condition लिखना useful है। इससे future use आसान होता है। / It is useful to record DNA amount purity ratios and storage condition in a report. This helps future use.

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DNA isolation में result reproducibility कैसे बढ़ती है?

How is result reproducibility increased in DNA isolation?

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A. standard protocol और good records सेBy standard protocol and good records

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Standard protocol और records experiment repeat करने में मदद करते हैं। इससे reliable results मिलते हैं। / A standard protocol and records help repeat the experiment. This gives reliable results.

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DNA isolation protocol optimize कब करना पड़ सकता है?

When may a DNA isolation protocol need optimization?

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A. जब sample type difficult हो या yield purity poor होWhen sample type is difficult or yield purity is poor

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Difficult samples में lysis cleanup और elution conditions बदलनी पड़ सकती हैं। Optimization result सुधारता है। / For difficult samples lysis cleanup and elution conditions may need changes. Optimization improves result.

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DNA isolation में troubleshooting का पहला step क्या हो सकता है?

What can be the first step in troubleshooting DNA isolation?

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A. yield purity और gel result को साथ देखनाLooking at yield purity and gel result together

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Yield purity और integrity together देखने से problem का कारण समझ आता है। Controls भी check करें। / Looking at yield purity and integrity together helps identify the problem cause. Check controls too.

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Level 44 का best revision chain क्या है?

What is the best revision chain of Level 44?

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A. sample choice buffer lysis cleanup quality storage application

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DNA isolation method sample और downstream application पर निर्भर करता है। Quality control हर stage में important है। / DNA isolation method depends on sample and downstream application. Quality control is important at every stage.

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Isolation of DNA level 44 का final summary क्या है?

What is the final summary of Isolation of DNA level 44?

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A. सही sample से clean intact DNA निकालकर आगे के प्रयोगों के लिए सुरक्षित रखनाIsolate clean intact DNA from correct sample and store it for further experiments

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DNA isolation में method choice quality check storage और safety सभी जरूरी हैं। Clean DNA recombinant DNA work की foundation है। / In DNA isolation method choice quality check storage and safety are all important. Clean DNA is the foundation of recombinant DNA work.

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FAQs

Class 11 Biotechnology Quiz FAQs

How many questions are in this quiz?

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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Can I open each question separately?

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