Question

an organism has 20 pairs of chromosomes in its diploid somatic cells. how many chromosomes are in its gametes?
20
10
40
5

Explanation:

Step1: Determine diploid chromosome number

Diploid somatic cells have \(2n\) chromosomes. Given \(n = 20\) pairs, diploid number \(2n=40\) chromosomes.

Step2: Recall gamete chromosome number

Gametes are haploid (\(n\)). Haploid number is half of diploid. So \(n=\frac{40}{2}=20\)

Answer:

20