Which of the following $RNAs$ should be most abundant in an animal cell?

How many nucleotides does $\phi \times 174$ bacteriophage contain?

Which of the following statements are correct with reference to the packaging of the $DNA$ helix?
$(A)$ Histones are organized to form a unit of eight molecules called a histone octamer.
$(B)$ Histones are negatively charged basic proteins.
$(C)$ Histones are rich in the basic amino acid residues - lysine and arginine.
$(D)$ The negatively charged $DNA$ is wrapped around the positively charged histone octamer to form a nucleosome.
$(E)$ The packaging of chromatin at higher levels requires an additional set of proteins called non-histone chromosomal proteins.

Which type of $RNA$ is found in the highest quantity in a cell?

Which one of the following is the genetic material of bacteriophage $\phi X 174$?

Nucleosomes give chromosomes a beaded appearance. They help in the packaging of $DNA$ in chromosomes. $A$ nucleosome consists of: