Genetics

How many chromosomes does each the male and female gamete have?

23

Chromosomes in egg and sperm are homologous. What are homologous chromosomes?

Chromosomes of the same number are the same size and contain the same genes in the same location.

Union of the egg and sperm create a ?

Zygote

How many chromosomes does a zygote contain?

46

What are homologous pairs?

A pair of chromosomes that carry the same genes, one from each parent (ex: a maternal #1 chromosome and a paternal #1 chromosome)

What is a karyotype?

The general appearance of the complete set of chromosomes in the cells of a species or in an individual organism

What kind of cells have exactly one copy of each chromosome?

Haploid cells (gametes)

What are the only haploid cells?

gametes (sex cells, eggs and sperm)

What kind of cells have two copies of each chromosome?

Diploid cells

Are zygotes haploid or diploid?

Diploid