X and Y Chromosomes

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Facts about X and Y Chromosomes. Comment below if this helps you:)
Evangeline Taylor
Mind Map by Evangeline Taylor, updated more than 1 year ago
Evangeline Taylor
Created by Evangeline Taylor over 10 years ago
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Resource summary

X and Y Chromosomes
  1. 22 pairs of chromosomes are in every human body cell
    1. The 23rd pair of chromosomes are labelled XX or XY
      1. These control your Gender
    2. All Men have XY chromosomes
      1. Y-Chromosomes cause male characteristic
      2. All women have XX chromosomes
        1. XX combination allows female chromosomes to develop
        2. When sperm are being made, the X-chromosomes and Y-chromosomes drawn apart during first division in Meiosis
          1. 50% chance that each sperm has a X-chromosomes or an Y-chromosomes
          2. Genetic diagrams show the possible combinations of gametes
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