Question

assume sexual reproduction occurs. what is the number of chromosomes in the zygote if the parents reproductive cells or gametes contain 12 chromosomes each?
a. 48
b. 24
c. 12
d. 6

Explanation:

Step1: Recall the concept of sexual reproduction

In sexual reproduction, a zygote is formed by the fusion of two gametes (one from each parent).

Step2: Calculate the chromosome number in the zygote

If each gamete has \(n = 12\) chromosomes, then the zygote (which is diploid) has \(2n\) chromosomes. So, \(2\times12=24\).

Answer:

B. 24