Answer to Question #161590 in Molecular Biology for Virat

Question #161590

6) The biosynthesis of the polypeptide involved t-RNA with anticodons UUA, GGC, CGC, AAG, CGU. Determine the nucleotide sequence of the region of each strand of the DNA molecule that carries information about the synthesized polypeptide, and the number of nucleotides containing A, G, T, C in a double-stranded DNA molecule.


1
Expert's answer
2021-02-16T05:47:26-0500



Solution:

Let’s solve this task using Complementary Base Pairing rule. Nucleotide base A is complementary to T and C is complementary to G. In RNA nucleotide base T is replaced with U, but U is still complimentary to A.


Answer:

  • t-RNA anticodons: UUA, GGC, CGC, AAG, CGU
  • m-RNA codons: AAU, CCG, GCG, UUC, GCA
  • coding strand DNA: TTA GGC CGC AAG CGT
  • complementary strand DNA: AAT CCG GCG TTC GCA
  • the number of nucleotides in this double-strand DNA molecule: 30

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