What are chromosomes.How it is transmitted sexually?
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chromosomes are a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
the gametes of an organism contain these chromosomes. when the gametes fuse an organism is formed
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during meiosis the Male XY sex chromosomes pair separates and passes on an X or a Y to separate gametes the result is that one half of the gametes (sperm) that are formed contain the X chromosomes and the other half contain the Y chromosomes.
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