Wild oysters are diploid and have 20 chromosomes in somatic cells. Scientists have generated tetraploid oysters using colchicine to prevent separation of sister chromatids. Crossing a diploid oyster with a tetraploid oyster resulted in triploid oysters that are commercially advantageous because they are larger and do not have a reproductive phase that usually interrupts the harvesting season.
-What is n in wild oysters?
A)5
B)10
C)20
D)40

Question

Quizplus · Accepted Answer

In wild oysters, which are diploid (2n), the somatic cells have 20 chromosomes. This means the haploid number (n), which represents the number of chromosomes in a gamete, is half of that, making it 10.

Wild Oysters Are Diploid and Have 20 Chromosomes in Somatic