A cell biologist produces a karyotype of mouse somatic cells arrested in mitosis.She sees 40 chromosomes,which is completely normal for mice.Based on this information,what is the haploid number of chromosomes for mice?
A)10
B)20
C)40
D)80
E)It cannot be determined from the information provided.

Question

Quizplus · Accepted Answer

The haploid number of chromosomes is half of the diploid number. Since the mouse somatic cells have 40 chromosomes, the diploid number is 2 times that, or 80 chromosomes. Therefore, the haploid number of chromosomes for mice is 40/2, which is 20.

A Cell Biologist Produces a Karyotype of Mouse Somatic Cells