Cell Division Flashcards
Mitosis
Cell division that occurs in body cells, resulting in TWO genetically identical cells.
Chromosome
Structure in a cell nucleus that is made up of a DNA molecule that has been condensed and coiled.
Diploid
Describes a cell that has a nucleus with two sets of chromosomes e.g. body cells.
Asexual reproduction
Reproduction without gametes, using mitosis, e.g. in bacteria.
Allele
A version of a gene.
Meiosis
Cell division that occurs to form sex cells (gametes), resulting in FOUR unique cells.
Gametes
Sex cells. They contain half the normal number of chromosomes for the specific organism.
Haploid
Describes a cell that has a nucleus with only one set of chromosomes, e.g. sex cells.
Zygote
Diploid ell resulting from the fusion of an egg and a sperm.
Fertilisation
The joining of the male and female gametes to make a new individual.