AP BIOLOGY

Detailed explanation-1: -There are a total of 78 chromosomes present in the parent somatic cell during the prophase of mitosis. In somatic or body cells, the number of chromosomes is diploid, meaning the cell contains two complete sets of chromosomes. There are 39 pairs of chromosomes (2n) for a total of 78 chromosomes.

Detailed explanation-2: -A dog (Canis familiaris) has 78 diploid number of chromosomes.

Detailed explanation-3: -Each species has a set number of chromosomes arranged in pairs within each cell, but the number of chromosomes can differ between species. Humans have 46 chromosomes (23 pairs), dogs have 78 chromosomes (39 pairs), cats have 38 chromosomes (19 pairs), and so on.

Detailed explanation-4: -A dog is a diploid organism and has 39 pairs of chromosomes (2n = 78), where n = 39 chromosomes from each parent.

Detailed explanation-5: -In dogs, 38 pairs of autosomes (non-sex chromosomes) can be found in every nucleus, for a total of 76 chromosomes plus the two sex chromosomes (X and Y) for a grand total of 78. During conception, a dog gets one copy of each chromosome from each parent.