AP BIOLOGY

Detailed explanation-1: -Diploid is a term that refers to the presence of two complete sets of chromosomes in an organism’s cells, with each parent contributing a chromosome to each pair. Humans are diploid, and most of the body’s cells contain 23 chromosomes pairs.

Detailed explanation-2: -Each chromosome consists of two chromatids. Diploid is the term for cells with a double number of chromosomes (2n), whereby one set of chromosomes is homolog to the other. (The sex chromosomes present in each human cell are an exception). A diploid cell remains 2n after replication, but doubles from 2c to 4c.

Detailed explanation-3: -To use the sharing features on this page, please enable JavaScript. In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.

Detailed explanation-4: -A haploid cell has only a single set of chromosomes. Most cells in humans are diploid rather than haploid, meaning they have two copies of each chromosome.

Detailed explanation-5: -Since diploid organisms have two copies of each chromosome, they have two of each gene. Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. This is important because alleles can be dominant, recessive, or codominant to each other.