Haploid

Definition

Haploid describes a cell that contains a single set of chromosomes. In humans, haploid cells are typically gametes, such as sperm and eggs, which contain 23 chromosomes each.

5 Must Know Facts For Your Next Test

1. Haploid cells are produced through the process of meiosis.
2. In diploid organisms, haploid cells combine during fertilization to form a diploid zygote.
3. The haploid number is denoted as 'n', while the diploid number is '2n'.
4. In humans, the haploid number is 23 chromosomes.
5. Haploidy ensures genetic diversity through sexual reproduction.

Review Questions

• What type of cell division results in haploid cells?
• How many chromosomes are present in a human haploid cell?
• Why is it important for gametes to be haploid?

Related terms

Diploid: Describes a cell that contains two sets of chromosomes, one from each parent.

Meiosis: A type of cell division that reduces the chromosome number by half, resulting in four haploid cells.

Gamete: A mature haploid reproductive cell, such as sperm or egg, capable of uniting with another to form a zygote.