Question

how many chromosomes will the following organism, a sheep, have at the end of * meiosis in its gamete cells?

Explanation:

Step1: Count the number of chromosome pairs

There are 27 pairs of chromosomes in the sheep's somatic cells (as shown in the karyotype).

Step2: Recall the process of meiosis

Meiosis reduces the chromosome number by half. So if the diploid number (\(2n\)) is \(2\times27 = 54\) (somatic cells), the haploid number (\(n\)) in gametes (after meiosis) is calculated as \(n=\frac{2n}{2}\).

Substituting \(2n = 54\) into the formula \(n=\frac{2n}{2}\), we get \(n=\frac{54}{2}=27\).

Answer:

27