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Read the following and answer the question given below :
Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.
Q. Restriction endonucleases are also called as molecular or biological scissors because:
- a)they cleave base pairs of DNA only at their terminal ends
- b)they cleave one or both the strands of DNA
- c)they act only on single stranded DNA
- d)none of these
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Read the following and answer the question given below : Restriction e...
Restriction endonucleases are referred to as molecular or biological scissors because they can cleave both strands of DNA at specific sites. This property is crucial for genetic engineering applications where precise cuts are required to splice genes or insert new sequences into DNA.
Therefore, the correct answer to why restriction endonucleases are called molecular or biological scissors is:
2 they cleave one or both the strands of DNA
This answer reflects the ability of these enzymes to make cuts in double-stranded DNA, which is essential for their role in recombinant DNA technology.
Most Upvoted Answer
Read the following and answer the question given below : Restriction e...
Explanation:
Restriction Endonucleases:
- Restriction endonucleases are enzymes that cut DNA at specific recognition sites.
- They are found in bacteria and are part of the bacterial defense system against foreign DNA, such as viral DNA.
- Restriction endonucleases recognize specific DNA sequences and cleave the DNA at or near these sequences.
Types of Restriction Endonucleases:
- There are three types of restriction endonucleases: Type I, Type II, and Type III.
- Type I restriction endonucleases cut DNA at random sites far away from the recognition sequence.
- Type III restriction endonucleases cut DNA at random sites within a short distance from the recognition sequence.
- Type II restriction endonucleases cut DNA at specific sites within the recognition sequence.
Role in Recombinant DNA Technology:
- Recombinant DNA technology involves the manipulation of DNA molecules to create new combinations of genetic material.
- Type II restriction endonucleases are commonly used in recombinant DNA technology.
- They are used to cut DNA at specific sites, creating fragments that can be combined with other DNA fragments.
- This allows scientists to insert genes or specific DNA sequences into other organisms, creating genetically modified organisms.
Restriction Endonuclease EcoR I:
- EcoR I is a Type II restriction endonuclease that recognizes the base sequence GAATTC in DNA duplex.
- It cuts the DNA duplex between the G and A bases in the recognition sequence.
- The resulting fragments can then be used in various molecular biology techniques, such as cloning or DNA sequencing.
Why Restriction Endonucleases are called Molecular or Biological Scissors:
- Restriction endonucleases are called molecular or biological scissors because they cleave one or both strands of DNA.
- They cut the DNA at specific recognition sites, creating fragments that can be manipulated in various molecular biology techniques.
- This ability to cleave DNA at specific points allows scientists to precisely manipulate DNA and create new combinations of genetic material.
Therefore, the correct answer is option 'B': they cleave one or both strands of DNA.
Restriction Endonucleases:
- Restriction endonucleases are enzymes that cut DNA at specific recognition sites.
- They are found in bacteria and are part of the bacterial defense system against foreign DNA, such as viral DNA.
- Restriction endonucleases recognize specific DNA sequences and cleave the DNA at or near these sequences.
Types of Restriction Endonucleases:
- There are three types of restriction endonucleases: Type I, Type II, and Type III.
- Type I restriction endonucleases cut DNA at random sites far away from the recognition sequence.
- Type III restriction endonucleases cut DNA at random sites within a short distance from the recognition sequence.
- Type II restriction endonucleases cut DNA at specific sites within the recognition sequence.
Role in Recombinant DNA Technology:
- Recombinant DNA technology involves the manipulation of DNA molecules to create new combinations of genetic material.
- Type II restriction endonucleases are commonly used in recombinant DNA technology.
- They are used to cut DNA at specific sites, creating fragments that can be combined with other DNA fragments.
- This allows scientists to insert genes or specific DNA sequences into other organisms, creating genetically modified organisms.
Restriction Endonuclease EcoR I:
- EcoR I is a Type II restriction endonuclease that recognizes the base sequence GAATTC in DNA duplex.
- It cuts the DNA duplex between the G and A bases in the recognition sequence.
- The resulting fragments can then be used in various molecular biology techniques, such as cloning or DNA sequencing.
Why Restriction Endonucleases are called Molecular or Biological Scissors:
- Restriction endonucleases are called molecular or biological scissors because they cleave one or both strands of DNA.
- They cut the DNA at specific recognition sites, creating fragments that can be manipulated in various molecular biology techniques.
- This ability to cleave DNA at specific points allows scientists to precisely manipulate DNA and create new combinations of genetic material.
Therefore, the correct answer is option 'B': they cleave one or both strands of DNA.
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Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer?
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Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer?.
Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Read the following and answer the question given below : Restriction endonuclease was isolated for the first time by W. Aber in 1962 in bacteria. Restriction endonucleases cut the DNA duplex at specific points therefore they are also called molecular scissors or biological scissors. Three types of restriction endonucleases are Type 1. Type ll and Type III but only Type II restriction endonucleases are used in recombinant DNA technology. Restriction endonuclease EcoR I recognises the base sequence GAATTC In DNA duplex and cut strands between G and A.Q. Restriction endonucleases are also called as molecular or biological scissors because:a)they cleave base pairs of DNA only at their terminal endsb)they cleave one or both the strands of DNAc)they act only on single stranded DNAd)none of theseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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