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

Level 17 • 50/50 questions • 40 seconds per question.

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एक रैखिक डीएनए में चार restriction sites हैं। complete digestion के बाद कितने fragments बनेंगे?

A linear DNA has four restriction sites. How many fragments will form after complete digestion?

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B. पाँचFive

Explanation

Simple Explanation

Linear DNA में fragments cuts से एक अधिक होते हैं। चार cuts से पाँच fragments बनेंगे। / In linear DNA fragments are one more than cuts. Four cuts form five fragments.

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एक circular plasmid में चार restriction sites हैं। complete digestion के बाद कितने fragments होंगे?

A circular plasmid has four restriction sites. How many fragments will form after complete digestion?

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C. चारFour

Explanation

Simple Explanation

Circular DNA में complete digestion पर fragments cuts के बराबर होते हैं। चार cuts से चार fragments मिलेंगे। / In circular DNA after complete digestion fragments equal cuts. Four cuts give four fragments.

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यदि linear DNA में एक restriction site है तो कितने fragments मिलेंगे?

If linear DNA has one restriction site how many fragments will be obtained?

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D. दोTwo

Explanation

Simple Explanation

Linear DNA में एक cut दो fragments देता है। इसे cuts plus one rule से याद करें। / One cut in linear DNA gives two fragments. Remember it by the cuts plus one rule.

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यदि circular plasmid में एक restriction site है तो digestion के बाद क्या मिलेगा?

If a circular plasmid has one restriction site what will be obtained after digestion?

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A. एक linear DNA moleculeOne linear DNA molecule

Explanation

Simple Explanation

Circular plasmid में एक cut उसे linear DNA molecule बना देता है। यह plasmid digestion का basic rule है। / One cut in a circular plasmid makes one linear DNA molecule. This is a basic rule of plasmid digestion.

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restriction enzyme से cut DNA को gel में क्यों चलाया जाता है?

Why is restriction-cut DNA run on a gel?

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B. DNA fragments को size के आधार पर अलग करने के लिएTo separate DNA fragments by size

Explanation

Simple Explanation

Gel electrophoresis DNA fragments को size के आधार पर अलग करता है। इससे restriction pattern दिखता है। / Gel electrophoresis separates DNA fragments by size. This shows the restriction pattern.

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gel में छोटा DNA fragment बड़े fragment की तुलना में सामान्यतः क्या करता है?

In a gel what does a smaller DNA fragment generally do compared with a larger fragment?

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C. अधिक दूर जाता हैMoves farther

Explanation

Simple Explanation

छोटे DNA fragments gel में अधिक आसानी से आगे बढ़ते हैं। इसलिए वे सामान्यतः अधिक दूर जाते हैं। / Smaller DNA fragments move more easily through a gel. Therefore they generally move farther.

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किस option में restriction enzyme और recognition sequence का सही मिलान है?

Which option correctly matches a restriction enzyme and recognition sequence?

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A. EcoRI-GAATTC

Explanation

Simple Explanation

EcoRI GAATTC recognition sequence के लिए जाना जाता है। Matching questions में यह common है। / EcoRI is known for the GAATTC recognition sequence. This is common in matching questions.

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किस option में BamHI का सही मिलान है?

Which option correctly matches BamHI?

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A. BamHI-GGATCC

Explanation

Simple Explanation

BamHI GGATCC sequence पहचानता है। इसे restriction enzyme examples में याद रखें। / BamHI recognizes the GGATCC sequence. Remember it among restriction enzyme examples.

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HindIII के लिए सही option कौन सा है?

Which option is correct for HindIII?

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A. HindIII-AAGCTT

Explanation

Simple Explanation

HindIII AAGCTT recognition sequence से जुड़ा है। यह EcoRI और BamHI से अलग है। / HindIII is linked with the AAGCTT recognition sequence. It is different from EcoRI and BamHI.

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HaeIII का सही example किससे जुड़ा है?

The correct example of HaeIII is linked with what?

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A. GGCC और blunt endsGGCC and blunt ends

Explanation

Simple Explanation

HaeIII GGCC sequence और blunt ends के लिए पढ़ा जाता है। यह direct example question हो सकता है। / HaeIII is studied for the GGCC sequence and blunt ends. This can be a direct example question.

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एक enzyme same recognition sequence पहचानता है पर दूसरे enzyme से अलग cut position देता है। उसे क्या कहा जा सकता है?

An enzyme recognizes the same recognition sequence but cuts at a different position from another enzyme. What can it be called?

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Correct Answer

B. neoschizomer

Explanation

Simple Explanation

Neoschizomers same sequence recognize कर सकते हैं लेकिन cut position अलग हो सकती है। यह terminology-based question है। / Neoschizomers can recognize the same sequence but may cut at different positions. This is a terminology-based question.

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दो अलग restriction enzymes same recognition sequence पहचानते हैं। उन्हें क्या कहते हैं?

Two different restriction enzymes recognize the same recognition sequence. What are they called?

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B. isoschizomers

Explanation

Simple Explanation

Isoschizomers अलग enzymes होते हैं पर same recognition sequence पहचानते हैं। परीक्षा में term और meaning साथ याद रखें। / Isoschizomers are different enzymes that recognize the same recognition sequence. Remember the term with its meaning.

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restriction enzyme की enzyme specificity किससे जुड़ी है?

Restriction enzyme specificity is linked with what?

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A. DNA recognition sequence

Explanation

Simple Explanation

Restriction enzyme अपने specific DNA recognition sequence को पहचानता है। इसी से उसकी specificity तय होती है। / A restriction enzyme recognizes its specific DNA recognition sequence. This defines its specificity.

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किस condition में sticky end ligation आसान हो सकती है?

Under which condition can sticky end ligation be easier?

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A. ends complementary होंEnds are complementary

Explanation

Simple Explanation

Complementary sticky ends base pairing कर सकते हैं। DNA ligase फिर permanent bond बनाता है। / Complementary sticky ends can base pair. DNA ligase then forms a permanent bond.

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किस condition में blunt-end joining comparatively कठिन हो सकती है?

Under which condition can blunt-end joining be comparatively difficult?

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A. overhang absent होOverhang is absent

Explanation

Simple Explanation

Blunt ends में complementary overhang नहीं होता। इसलिए initial base pairing support नहीं मिलता। / Blunt ends have no complementary overhang. Therefore initial base pairing support is absent.

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कौन सा option restriction enzyme का source और role दोनों बताता है?

Which option gives both source and role of restriction enzymes?

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A. bacteria से मिले और DNA cut करते हैंFound in bacteria and cut DNA

Explanation

Simple Explanation

Restriction enzymes bacterial origin के DNA cutting tools हैं। यह easy-level summary सबसे महत्वपूर्ण है। / Restriction enzymes are bacterial-origin DNA cutting tools. This easy-level summary is most important.

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कौन सा statement restriction enzyme के बारे में सही नहीं है?

Which statement is not correct about restriction enzymes?

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D. वे मुख्य रूप से glucose synthesis enzyme हैंThey are mainly glucose synthesis enzymes

Explanation

Simple Explanation

Restriction enzymes glucose synthesis enzymes नहीं हैं। उनका मुख्य कार्य DNA cutting है। / Restriction enzymes are not glucose synthesis enzymes. Their main role is DNA cutting.

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किस option में restriction enzyme का correct application है?

Which option is a correct application of restriction enzymes?

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A. gene cloning

Explanation

Simple Explanation

Gene cloning में restriction enzymes vector और insert DNA को cut करने में उपयोगी हैं। यह biotechnology application है। / In gene cloning restriction enzymes help cut vector and insert DNA. This is a biotechnology application.

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किस option में restriction enzyme का incorrect application है?

Which option is an incorrect application of restriction enzymes?

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C. starch digestion

Explanation

Simple Explanation

Restriction enzymes DNA analysis और recombinant DNA में उपयोगी हैं। Starch digestion के लिए amylase जैसे enzymes होते हैं। / Restriction enzymes are useful in DNA analysis and recombinant DNA. Enzymes like amylase are used for starch digestion.

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एक plasmid map में कई restriction sites एक छोटे region में हैं। उस region को क्या कहा जा सकता है?

A plasmid map has many restriction sites in a small region. What can that region be called?

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A. multiple cloning site

Explanation

Simple Explanation

Multiple cloning site में कई restriction sites होती हैं। यह insert DNA cloning में flexibility देता है। / A multiple cloning site has many restriction sites. It provides flexibility in insert DNA cloning.

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यदि plasmid और insert को दो अलग enzymes से cut किया जाए तो क्या benefit हो सकता है?

If plasmid and insert are cut with two different enzymes what can be a benefit?

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A. directional cloning आसान होनाEasier directional cloning

Explanation

Simple Explanation

दो अलग enzymes अलग ends बना सकते हैं। इससे insert orientation control बेहतर हो सकता है। / Two different enzymes can create different ends. This can improve insert orientation control.

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restriction digestion के बाद expected smaller band नहीं दिखा। कौन सा simple reason हो सकता है?

After restriction digestion the expected smaller band is not visible. What can be a simple reason?

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A. कम DNA या weak stainingLow DNA or weak staining

Explanation

Simple Explanation

कम DNA या weak staining से छोटे band देखना कठिन हो सकता है। Practical interpretation में sample amount याद रखें। / Low DNA or weak staining can make small bands hard to see. Remember sample amount in practical interpretation.

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restriction digestion में extra uncut band दिखना किसकी ओर संकेत कर सकता है?

An extra uncut band in restriction digestion can indicate what?

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A. partial digestion

Explanation

Simple Explanation

Uncut band का अर्थ हो सकता है कि कुछ DNA molecules cut नहीं हुए। यह partial digestion का संकेत हो सकता है। / An uncut band may mean some DNA molecules were not cut. This can indicate partial digestion.

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enzyme star activity से result में क्या समस्या हो सकती है?

What problem can enzyme star activity cause in results?

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A. unexpected extra cuts

Explanation

Simple Explanation

Star activity non-specific cutting करा सकती है। इससे unexpected fragments मिल सकते हैं। / Star activity can cause non-specific cutting. This may produce unexpected fragments.

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किस option में buffer का role सही बताया गया है?

Which option correctly describes the role of buffer?

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A. enzyme के लिए proper pH और ionic condition देनाGiving proper pH and ionic condition for enzyme

Explanation

Simple Explanation

Buffer reaction environment को enzyme activity के लिए suitable बनाता है। गलत buffer digestion को प्रभावित कर सकता है। / Buffer makes the reaction environment suitable for enzyme activity. Wrong buffer can affect digestion.

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कौन सा option restriction enzymes के handling से जुड़ा सही practical point है?

Which option is a correct practical point about handling restriction enzymes?

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A. उन्हें heat से बचाकर cold condition में रखनाKeep them cold and protected from heat

Explanation

Simple Explanation

Restriction enzymes proteins हैं और heat sensitive हो सकते हैं। Cold storage activity को सुरक्षित रखती है। / Restriction enzymes are proteins and can be heat sensitive. Cold storage preserves activity.

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किस option में restriction enzyme का molecular target सही है?

Which option gives the correct molecular target of restriction enzyme?

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A. DNA phosphodiester backbone

Explanation

Simple Explanation

Restriction enzymes DNA के phosphodiester backbone में cuts बनाते हैं। इसलिए उनका target DNA है। / Restriction enzymes make cuts in the phosphodiester backbone of DNA. Therefore their target is DNA.

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किस word से पता चलता है कि restriction enzyme DNA के अंदर cut करता है?

Which word shows that a restriction enzyme cuts inside DNA?

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A. endonuclease

Explanation

Simple Explanation

Restriction endonuclease में endonuclease का अर्थ nucleic acid के अंदर cut करना है। यह नाम के अर्थ से जुड़ा fact है। / In restriction endonuclease endonuclease means cutting inside a nucleic acid. This fact is linked with the meaning of the name.

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किस option में restriction enzyme और exonuclease का difference सही है?

Which option correctly gives the difference between restriction enzyme and exonuclease?

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A. restriction enzyme specific internal cut कर सकता हैRestriction enzyme can make a specific internal cut

Explanation

Simple Explanation

Restriction enzyme endonuclease की तरह internal cut करता है। Exonuclease ends से nucleotides हटाता है। / Restriction enzyme makes internal cuts like an endonuclease. Exonuclease removes nucleotides from ends.

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कौन सा option palindromic sequence का correct idea देता है?

Which option gives the correct idea of a palindromic sequence?

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A. opposite directions में दोनों strands पर same readingSame reading on both strands in opposite directions

Explanation

Simple Explanation

कई restriction sites palindromic होते हैं। यह restriction enzyme recognition में common feature है। / Many restriction sites are palindromic. This is a common feature in restriction enzyme recognition.

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एक bacteria अपने DNA को methylate नहीं कर पाए तो क्या risk होगा?

If a bacterium cannot methylate its own DNA what risk will occur?

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A. अपना DNA restriction enzyme से cut हो सकता हैIts own DNA may be cut by restriction enzyme

Explanation

Simple Explanation

Methylation self DNA को restriction enzyme से बचाती है। इसके बिना own DNA भी vulnerable हो सकता है। / Methylation protects self DNA from restriction enzymes. Without it self DNA can become vulnerable.

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कौन सा option restriction enzymes के defense role में phage से जुड़ता है?

Which option connects restriction enzymes with phage in defense role?

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A. phage DNA को cut करनाCutting phage DNA

Explanation

Simple Explanation

Bacteria invading phage DNA को cut कर सकते हैं। Restriction enzyme का natural role defense है। / Bacteria can cut invading phage DNA. The natural role of restriction enzymes is defense.

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restriction enzyme के बिना recombinant DNA technique में कौन सा step मुश्किल होगा?

Without restriction enzyme which step becomes difficult in recombinant DNA technique?

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A. DNA को specific site पर cut करनाCutting DNA at specific site

Explanation

Simple Explanation

Recombinant DNA में desired cut sites बनाने के लिए restriction enzymes महत्वपूर्ण हैं। इनके बिना controlled cutting कठिन होती है। / Restriction enzymes are important for making desired cut sites in recombinant DNA. Without them controlled cutting is difficult.

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किस option में restriction enzyme का सही natural plus artificial use है?

Which option gives the correct natural plus artificial use of restriction enzyme?

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A. bacteria defense और lab cloningBacterial defense and lab cloning

Explanation

Simple Explanation

Natural role bacterial defense है और artificial lab use cloning में है। यह complete concept revision है। / The natural role is bacterial defense and artificial lab use is in cloning. This is complete concept revision.

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अगर vector और insert incompatible ends रखते हैं तो क्या problem होगी?

If vector and insert have incompatible ends what problem will occur?

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A. joining difficult होगीJoining will be difficult

Explanation

Simple Explanation

Incompatible ends properly base pair नहीं कर पाएंगे। इसलिए ligation efficiency घट सकती है। / Incompatible ends will not base pair properly. Therefore ligation efficiency may decrease.

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कौन सा option insert orientation problem को कम कर सकता है?

Which option can reduce the insert orientation problem?

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A. two different restriction enzymes use करनाUsing two different restriction enzymes

Explanation

Simple Explanation

Two different enzymes अलग ends बनाते हैं। इससे insert एक preferred direction में लग सकता है। / Two different enzymes create different ends. This can place the insert in a preferred direction.

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किस option में restriction enzyme और plasmid opening का correct link है?

Which option correctly links restriction enzyme and plasmid opening?

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A. enzyme plasmid को selected site पर cut कर सकता हैEnzyme can cut plasmid at a selected site

Explanation

Simple Explanation

Plasmid cloning में restriction enzyme selected site पर cut कर सकता है। इससे insert लगाने की जगह बनती है। / In plasmid cloning a restriction enzyme can cut at a selected site. This creates space for inserting DNA.

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कौन सा option DNA ligase के role को restriction enzyme के बाद सही बताता है?

Which option correctly describes the role of DNA ligase after restriction enzyme?

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A. cut fragments को covalent bond से जोड़नाJoining cut fragments by covalent bonds

Explanation

Simple Explanation

DNA ligase phosphodiester bonds बनाकर DNA fragments जोड़ता है। Restriction enzyme cutting के लिए होता है। / DNA ligase joins DNA fragments by forming phosphodiester bonds. Restriction enzyme is for cutting.

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restriction site absent होने पर gel में क्या दिख सकता है?

What may be seen in a gel if the restriction site is absent?

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A. uncut DNA band

Explanation

Simple Explanation

Site absent होने पर enzyme cut नहीं करेगा। इसलिए original uncut DNA band दिख सकता है। / If the site is absent the enzyme will not cut. Therefore the original uncut DNA band may appear.

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यदि restriction enzyme बहुत कम मात्रा में डाला गया तो क्या हो सकता है?

If too little restriction enzyme is added what can happen?

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A. digestion incomplete हो सकता हैDigestion may be incomplete

Explanation

Simple Explanation

कम enzyme से सभी sites पर cut नहीं हो सकता। इससे partial digestion pattern आ सकता है। / With too little enzyme all sites may not be cut. This can produce a partial digestion pattern.

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किस option में restriction enzyme के लिए correct reaction requirement है?

Which option is a correct reaction requirement for restriction enzyme?

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A. suitable buffer और active enzymeSuitable buffer and active enzyme

Explanation

Simple Explanation

Active enzyme और suitable buffer restriction digestion के लिए जरूरी हैं। Practical MCQs में conditions जरूर देखें। / Active enzyme and suitable buffer are needed for restriction digestion. Check conditions in practical MCQs.

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किस option में restriction enzymes को पढ़ने का best table heading है?

Which option is the best table heading for studying restriction enzymes?

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A. enzyme source recognition sequence end type

Explanation

Simple Explanation

Restriction enzyme questions में source sequence और end type पूछे जा सकते हैं। इन्हें table form में revise करना उपयोगी है। / Restriction enzyme questions may ask source sequence and end type. Revising them in table form is useful.

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कौन सा option type II restriction enzymes के बारे में सही है?

Which option is correct about Type II restriction enzymes?

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A. वे defined recognition sites के पास cut करते हैंThey cut near defined recognition sites

Explanation

Simple Explanation

Type II enzymes defined sites पर cut करते हैं। इसीलिए biotechnology में उन्हें अधिक उपयोगी माना जाता है। / Type II enzymes cut at defined sites. That is why they are considered more useful in biotechnology.

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किस option में molecular scissors term का accurate reason है?

Which option gives the accurate reason for the term molecular scissors?

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A. DNA molecules को cut करते हैंThey cut DNA molecules

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Molecular scissors शब्द DNA cutting ability के कारण दिया गया है। यह restriction enzymes का popular नाम है। / The term molecular scissors is due to their DNA cutting ability. It is a popular name for restriction enzymes.

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restriction enzyme से बने compatible sticky ends को stable recombinant DNA में बदलने के लिए क्या चाहिए?

What is needed to convert compatible sticky ends made by restriction enzyme into stable recombinant DNA?

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A. DNA ligase

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Compatible sticky ends पहले pair कर सकते हैं। Stable joining के लिए DNA ligase phosphodiester bonds बनाता है। / Compatible sticky ends can pair first. DNA ligase forms phosphodiester bonds for stable joining.

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किस option में restriction enzymes का board-level definition सही है?

Which option gives the board-level definition of restriction enzymes?

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A. specific DNA sequences को cut करने वाले bacterial enzymesBacterial enzymes that cut specific DNA sequences

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यह definition source और function दोनों बताती है। Class 11 exam में यही सबसे उपयोगी definition है। / This definition gives both source and function. It is the most useful definition for Class 11 exams.

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किस option में restriction enzyme और recombinant DNA का correct link है?

Which option correctly links restriction enzyme and recombinant DNA?

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A. restriction enzyme DNA fragments बनाने में मदद करता हैRestriction enzyme helps make DNA fragments

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Recombinant DNA बनाने में अलग DNA fragments की जरूरत होती है। Restriction enzymes उन्हें specific cuts से तैयार करते हैं। / Making recombinant DNA needs different DNA fragments. Restriction enzymes prepare them with specific cuts.

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किस option में restriction enzyme का wrong target दिया गया है?

Which option gives the wrong target of a restriction enzyme?

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A. starch molecule

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Restriction enzymes DNA targets पर काम करते हैं। Starch उनका target नहीं है। / Restriction enzymes act on DNA targets. Starch is not their target.

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किस option में gel band interpretation सही है?

Which option gives correct gel band interpretation?

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A. bands DNA fragments को show करते हैंBands show DNA fragments

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Restriction digestion के बाद gel bands DNA fragments के position को दिखाते हैं। उनका size ladder से compare किया जा सकता है। / After restriction digestion gel bands show positions of DNA fragments. Their size can be compared with a ladder.

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Restriction Enzymes topic का सबसे सुरक्षित exam summary क्या है?

What is the safest exam summary of the Restriction Enzymes topic?

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A. specific DNA cutting bacterial enzymes useful in cloning

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Restriction enzymes bacteria से जुड़े specific DNA cutters हैं। इन्हें recombinant DNA और cloning से जोड़कर याद रखें। / Restriction enzymes are bacteria-linked specific DNA cutters. Remember them with recombinant DNA and cloning.

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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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