Question

grizzly bears and polar bears have 74 chromosomes in a somatic cell, and giant panda bears only have 42 in their somatic cells. how many chromosomes are there in a sperm cell from each of the bears pictured above? (see worksheet for illustration)

Answer 1

In all three species of bears, sperm cells have half the number of chromosomes as the somatic cells. So, grizzly bears and polar bears have 37 chromosomes in a sperm cell, while giant pandas have 21 chromosomes in a sperm cell.