AP BIOLOGY

Detailed explanation-1: -Haploid refers to the presence of a single set of chromosomes in an organism’s cells. Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only the egg and sperm cells are haploid.

Detailed explanation-2: -Each egg is haploid, it contains a single copy of each chromosome with the sex chromosome always an X chromosome. In addition, eggs are also the source of all the mitochondrial DNA found in a fertilised cell.

Detailed explanation-3: -Eggs are haploid cells, having half the number of chromosomes of other cells in the body, which are diploid cells. Like sperm, eggs must be haploid in order for sexual reproduction to result in a diploid offspring.

Detailed explanation-4: -The sperm cells of humans are haploid. Sperms cells are produced in reproductive organ testes. In haploid cells, only one set of chromosomes is found. In human cells, the total number of chromosomes is 46.