If a certain group of cells utilise the amino acid glycine exclusively for protein synthesis, and if a growing culture of these cells is fed radioactive glycine, radioactivity will be found first in the

Chromosome number is

Consider the process that a cell uses to replicate its double strand $DNA$ to make copies for daughter cells. Which statement describes the $DNA$ in daughter cells?

The total number of nitrogenous bases in human genome is estimated to be about

Khorana got the Nobel Prize on