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Biotechnology Principles and Processes question

2021 · Q67
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Biotechnology Principles and Processes question

2021 · Q67

NEETBiologyBiotechnology Principles and ProcessesMCQ+4 / −1
A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is :
  1. A
    Poly (A) tail sequences
  2. B
    Degenerate primer sequence
  3. C
    Okazaki sequences
  4. D
    Palindromic Nucleotide sequences
View written solutionFree

Correct answer: D

∙\bullet∙ Each restriction endonuclease recognizes a specific palondromic nucleotide sequence in the DNA. Once it finds its specific recognition sequence it bind to DNA and cuts each of the two strands of DNA.

∙\bullet∙ During post transcriptional modification in eukaryotes, poly(A) tail (200-300 adenylate residues) are added at 3' end of hnRNA.

∙\bullet∙ During DNA replication Okazaki fragments are synthesized discontinuously and joined by DNA ligase.

∙\bullet∙ A PCR primer sequence is termed degenerate if some of its position have several possible bases.

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