HomeLearn Fast select Course
Show Unit/ChapterChange UnitChange SubjectLast Menu
NEET-XII-Biology

Previous Year Paper year:2017

with Solutions - page 2
Qstn# 76 Prvs-QstnNext-Qstn
  • #76
    If there are 999 bases in an RNA that codes for a
    protein with 333 amino acids, and the base at position
    901 is deleted such that the length of the RNA becomes
    998 bases, how many codons will be altered ?
    (1) 333
    (2) 1
    (3) 11
    (4) 33
    digAnsr:   4
    Ans : (4)
    Sol. 333 amino acid from 999 bases
    300 amino acid from 900 bases
    Alteration in 901 means frame shift occurred in the sequence thereafter, which will affect rest 33 codons.