Cell reproduction

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created 11 years ago by JimiCarter
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updated 11 years ago by JimiCarter
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1

Chromosome

A chromosome is a strand of coiled DNA containing many genes.

2

Genes

A short section of DNA, located on chromosomes, that carries the genetic code for a particular characteristic.

3

Alleles

An allele is an alternative form of a gene (one of a pair) that is located at a specific position on a chromosome.

4

DNA (Deoxyribonucleic acid)

Complex chemical that carries genetic information.

5

Diploid cell
(diploid number of chromosomes)

Containing two complete sets of chromosomes, one from each parent.

6

Mitosis

A type of cell division where the daughter cells are all diploid cells.

7

Meiosis

A type of cell division that produces sex cells (gametes) with half the number of chromosomes of a diploid cell.

8

Haploid cell
(haploid number of chromosomes)

A cell that has a single set of unpaired chromosomes

9

Gamete

a male or female sex cell that is able to combine with the opposite cell to produce a zygote

10

Zygote

A fertilised egg cell that has a diploid number of chromosomes

11

Embryo

Unborn offspring before the organs develop