Question

Of what is this an example? A puppy’s cells have two sex chromosomes that are the same.

homozygous dominant

homozygous recessive

heterozygous

female

Answer 1

Female. If the puppy has two identical chromosomes, it would be XX, being female. 

Answer 2

female

Step-by-step explanation:

In dogs, sex determination is done by XY-system. The X and Y chromosomes are known as sex chromosomes. Karyotype of males is represented by XY as males have one X and Y chromosome, while karyotype of females is represented by XX as females have both X chromosomes.

Hence, if a puppy cell's have same sex chromosomes, these cells must have two X chromosomes, which represents a female. Thus, the correct answer is option). female.