Video Transcript
Which of the following tables correctly matches the sex of humans to the sex-determining chromosomes? (A) Male XY, female XX; (B) male XX, female XY; (C) male X, female Y.
In humans, we have 46 chromosomes in total. Each chromosome comes in a pair, with one copy coming from our biological mother and the other copy coming from our biological father. Chromosomes are numbered from one to 22, with chromosome one being the largest and chromosome 22 being the smallest. The 23rd pair of chromosomes are the sex chromosomes because they determine our biological sex. Having two copies of the X chromosome results in a biological female, while having a single X chromosome and a single Y chromosome results in a biological male.
Therefore, the correct answer is (A), male XY, female XX.
