Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETZoologyBiotechnology - Principles and Processes

Read the following statements and choose the correct option: 1. Restriction enzymes cut the strand of DNA a little away from the centre of the palindrome sites, but between the same two bases on the opposite strands. 2. There are overhanging stretches called sticky ends on each strand 3. These are named so because they form hydrogen bonds with their complementary cut counterparts. 4. This stickiness of the ends facil

Options

  1. AAll are correct
  2. BOnly 2 is correct
  3. CBoth 4 and 5 are incorrect
  4. DBoth 1 and 3 are correct

Correct answer

A. All are correct

Step-by-step solution

Each restriction endonuclease functions by ‘inspecting’ the length of a DNA sequence. Once it finds its specific recognition sequence, it will bind to the DNA and cut each of the two strands of the double helix at specific points in their sugar -phosphate backbones. Each restriction endonuclease recognises a specific palindromic nucleotide sequences in the DNA.

Practice Biotechnology - Principles and Processes on Quantrex Academy →

More from Biotechnology - Principles and Processes

During PCR, primers bind to the DNA strands in the __________ step. 2026Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : In recombinant DNA technology, lysozyme is used for disrupting 2026Which of the following statements are not true regarding restriction endonucleases ? A. They are called molecular scissors. B. These are the enzymes responsible for restricting the 2026Which of the following statements are correct with respect to DNA separation, isolation and visualization ? A. The cutting of DNA is done by molecular scissors. B. The DNA fragment 2026Match List I with List II : List I List II A. Genetically modified organism I. Agrobacterium tumefaciens B. Thermostable DNA polymerase II. Bt cotton C. Ti plasmid III. Thermus aqu 2026In the above represented plasmid, an alien piece of DNA is inserted at EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies? 2025Given below are two statements : Statement I: The DNA fragments extracted from gel electrophoresis can be used in construction of recombinant DNA. Statement II : Smaller size DNA f 2025Which of the following cannot be used for direct gene transfer? 2019 Full Biotechnology - Principles and Processes list All NEET PYQs