AP BIOLOGY

Detailed explanation-1: -Definition. 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: -Chromatid A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division.

Detailed explanation-3: -Answer and Explanation: The haploid cell is the cell that contains one copy of each chromosome. The meiotic division of the diploid cell containing two copies produces this type of cell. During the meiotic division, one copy moves to a new cell producing a haploid cell.

Detailed explanation-4: -The cells that enter meiosis II are the ones made in meiosis I. These cells are haploid-have just one chromosome from each homologue pair-but their chromosomes still consist of two sister chromatids.

Detailed explanation-5: -Haploid cells are excellent tools to study gene function as they contain a single copy of the genome and are thus unable to mask the effect of mutations.