4.3.5

Sex Determination

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Sex Determination

Healthy human body cells contain 23 pairs of chromosomes, only one of which is responsible for determining sex (or gender). This pair of chromosomes are called the sex chromosomes and can either be X or Y:

Illustrative background for FemalesIllustrative background for Females ?? "content

Females

  • Females are XX, so an egg contains one X chromosome.
Illustrative background for MalesIllustrative background for Males ?? "content

Males

  • Males are XY, so a sperm contains either one X or one Y chromosome.

Jump to other topics

1The Nature & Variety of Living Organisms

2Structure & Functions in Living Organisms

3Organism Functions

3.1Respiration

3.2Gas Exchange

3.3Transport

3.4Excretion

3.5Coordination & Response

4Reproduction & Inheritance

5Ecology

6Biological Resources

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