Which type of cells contain a haploid number chromosomes?

The type of cells that contain a haploid number of chromosomes are called gametes.

Here's why:

* Haploid: Means having only one set of chromosomes.

* Gametes: Reproductive cells, such as sperm and egg cells.

Why are gametes haploid?

During sexual reproduction, a sperm cell (haploid) and an egg cell (haploid) fuse to form a zygote. The zygote is diploid, meaning it has two sets of chromosomes, one from each parent. This ensures that the offspring inherits a complete set of genetic material from both parents.

Examples of diploid cells:

* Somatic cells (all body cells except gametes)

* Zygote

Examples of haploid cells:

* Sperm cells

* Egg cells