Question

DNA in the nucleus of rabbit egg is 1.8 picograms, its liver cell will have mass of DNA ______ picograms.

• A. 7.2
• B. 0.9
• C. 1.8
• D. 3.6

Answer 1

The correct option is D 3.6

Egg and sperm are the germ cells that are produced by meiosis, a type of cell division with two consecutive nuclear division after one round of chromosome replication to produce four daughter cell with half the chromosome number as compared to the parent cell. Thus, egg and sperms are haploid cells in otherwise diploid organism. Rabbit is a diploid organism and its egg represent the haploid DNA content (1.8 picograms). Liver cells are diploid cells and hence, will have double the DNA content as compared to the egg cell, i.e., 1.8 X 2= 3.6 picograms. Thus, the correct answer is D.