Tanuja Bunkar posted an Question
May 29, 2021 • 16:17 pm 10 points
  • CSIR NET
  • Life Sciences

U can bind with adinin in dna so why dna has only atgc base pair or why dna use thymine instead of uracil if dna can make bond with uracil

U can bind with Adinin in DNA so why DNA has only ATGC base pair or why DNA use Thymine instead of Uracil if dna can make bond with Uracil

1 Answer(s) Answer Now
  • 0 Likes
  • 2 Comments
  • 0 Shares
  • Karishma64

    Moreover,the deamination of CYTOSINE leads to the formation of URACIL. If URACIL is present in DNA, then it will be difficult to know if it is the original URACIL or it has been formed by the deamination of CYTOSINE. In this way, the mutations occurring by the deamination of CYTOSINE can not be detected. Thus DNA has thymine for this reason also.

  • Karishma64 best-answer

    DNA uses thymine instead of uracil because thymine has greater resistance to photochemical mutation, making the genetic message more stable. Outside the nucleus, thymine is quickly destroyed. Thus, DNA uses uracil for adenine when it is to be transported outside the nucleus.

    eduncle-logo-app

    I got it thank you

    eduncle-logo-app

    Welcome

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers