Sperm in determining sex
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I hereby accept the Terms and Conditions. If both parents must have the gene for the child to get the disorder, it is called a recessive disorder.
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Sperm can contain an X or Y sex chromosome. The pairing of these chromosomes is different in males and females and helps determine sex in humans.
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Nettie Stevens discovered XY sex chromosomes. She didn't get credit because she had two X’s.
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Width; 3. The limitations of the previous methods could be overcome by a more powerful technique for this type of evaluation.
Description: The male had 20 chromosomes as well, but the 20th was notably smaller than the other
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