Question

The human gametes have about 3 billion bp of DNA in their chromosomes.

a. Express the size of the diploid genome in kb (kilo bases; 1kb = 1000bp)

A) 3,000 kb
B) 1,500 kb
C) 6,000 kb
D) 750 kb

Answer 1

The size of the diploid human genome is 6,000 kb.

Step-by-step explanation:

The diploid genome size can be calculated by multiplying the haploid genome size by 2. Since each haploid set of human chromosomes has about 3 billion base pairs (bp) of DNA, the diploid genome size would be 2 times that, which is 6 billion base pairs. To express this size in kilobases (kb), we can divide by 1000 since 1 kb is equal to 1000 bp.

Therefore, the size of the diploid genome in kb would be:

6 billion bp ÷ 1000 bp/kb = 6,000 kb.