KVPY Government Jobs Exams

Two students are given two different double stranded DNA molecules of equal length. They are asked to
denature the DNA molecules by heating. The DNA given to student A has the following composition of
bases (A:G:T:C:35:15:35:15) while that given to student B is (A:G:T:C::12:38:12:38). Which of the
following statements is true ?
(A) Both the DNA molecules would denature at the same rate
(B) The information given is insufficient to draw any conclusion
(C) DNA molecule given to student B would denature faster than that of student A
(D) DNA molecule given to student A would denature faster than that given to student B

Read Solution (Total 0)

KVPY Other Question

In a diploid organism, there are three different alleles for a particular gene. Of these three alleles one is
recessive and the other two alleles exhibit co-dominance. How many phenotypes are possible with this set of
alleles ?
(A) 3 (B) 6 (C) 4 (D) 2
The amino acid sequences of a bacterial protein and a human protein carrying out similar function are found
to be 60% identical. However the DNA sequences of the genes coding for these proteins are only 45%
identical. This is possible because-
(A) Protein sequence does not depend on DNA sequence
(B) DNA codons having different nucleotides in the third position can code for the same amino acids
(C) DNA codons having different nucleotides in the second position can code for the same amino acids
(D) Same DNA codons can code for multiple amino acids