AP BIOLOGY

Detailed explanation-1: -Each person normally has one pair of sex chromosomes in each cell. The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosomes.

Detailed explanation-2: -Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born. They are called sex chromosomes: Females have 2 X chromosomes. Males have 1 X and 1 Y chromosome.

Detailed explanation-3: -Typically, biologically male individuals have one X and one Y chromosome (XY) while those who are biologically female have two X chromosomes. However, there are exceptions to this rule. The sex chromosomes determine the sex of offspring.

Detailed explanation-4: -Typically, biologically female individuals have two X chromosomes (XX) while those who are biologically male have one X and one Y chromosome (XY). However, there are exceptions to this rule. Biologically female people inherit an X chromosome from their father, and the other X chromosome from their mother.

Detailed explanation-5: -This is because sperm cells with an X and Y copy have some different characteristics: Y sperm: are faster but survive for less time in the female genital tract. X sperm: are slower, but they are more resistant and therefore survive longer.