Molecular Basis of Inheritance Quiz 1

How many of the following characteristics are shown by the R-strain of Streptococcus pneumonia? Avirulent, Smooth, Pathogenic, Capsulated …………

Griffith obtained …………….. from the blood of the dead mice.

Oswald T. Avery, Colin M. MacLeod and Maclyn McCarty demonstrated that ……………

Enzymes like ……………….. and DNA topoisomerase-I, play important role in maintaining super-coiled state in prokaryotic DNA.

Histone octamer of nucleosome has two molecules, each of ……………….. proteins.

Select the CORRECT statement.

A DNA molecule in which both strands have 14N is allowed to replicate in an environment containing $^{15}N$. What will be the exact number of DNA molecules that contain the $^{14}N$after three replications?

As the base sequence present on one strand of DNA decides the base sequence of other 8 strand, this strand is considered as …………

In prokaryotes ……………….. recognizes the promoter sequence.

Which of the following was NOT observed in Hershey and Chase experiment?