NEET BIOLOGY

Detailed explanation-1: -The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosomes. Identifying genes on each chromosome is an active area of genetic research.

Detailed explanation-2: -The X and Y chromosomes, also known as the sex chromosomes, determine the biological sex of an individual: females inherit an X chromosome from the father for a XX genotype, while males inherit a Y chromosome from the father for a XY genotype (mothers only pass on X chromosomes).

Detailed explanation-3: -BY MORTEN BUSCH. Sex chromosomes usually determine whether you are female or male. Women are XX. Men are XY.

Detailed explanation-4: -Genotypic sex refers specifically to an individual’s two sex chromosomes. Most people have either two X chromosomes (genotypic female) or an X and a Y chromosome (genotypic male).

Detailed explanation-5: -Variants in the DHH and NR5A1 genes disrupt the process of sex development, preventing affected individuals with a 46, XY karyotype from developing testes and causing them to develop female reproductive structures.