829930
Description
Mind Map by Evangeline Taylor, updated more than 1 year ago
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Created by Evangeline Taylor
almost 10 years ago
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X and Y Chromosomes
- 22 pairs of chromosomes are in every
human body cell
- The 23rd pair of chromosomes are
labelled XX or XY
- These control your Gender
- These control your Gender
- The 23rd pair of chromosomes are
labelled XX or XY
- All Men have XY chromosomes
- Y-Chromosomes cause male
characteristic
- Y-Chromosomes cause male
characteristic
- All women have XX chromosomes
- XX combination allows female
chromosomes to develop
- XX combination allows female
chromosomes to develop
- When sperm are being made, the X-chromosomes
and Y-chromosomes drawn apart during first division
in Meiosis
- 50% chance that each sperm has a X-chromosomes or an
Y-chromosomes
- 50% chance that each sperm has a X-chromosomes or an
Y-chromosomes
- Genetic diagrams show the
possible combinations of
gametes
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