The domestic dog has 39 pairs of homologous chromosomes.A dog's somatic cells have ________ chromosomes and gametes have ________ chromosomes.
A)78; 78
B)78; 39
C)39; 15
D)156; 78
E)39; 39

Question

Quizplus · Accepted Answer

Somatic cells are diploid, meaning they contain two sets of chromosomes, one from each parent, so a dog's somatic cells have 78 chromosomes (39 pairs x 2). Gametes, however, are haploid, containing only one set of chromosomes, so a dog's gametes have 39 chromosomes.

The Domestic Dog Has 39 Pairs of Homologous Chromosomes