Y-chromosomes Sentence Examples

y-chromosomes

  • The chromosomes that determine whether a person is male or female are called the X and Y chromosomes.

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  • Genealogy DNA testing examines the information contained on the X and Y chromosomes and helps determine whether, and to what extent, two individuals are related.

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  • Fathers cannot transmit Fragile X to sons, since they contribute only Y chromosomes to male children.

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    Homozygous refers to the state or condition that occurs when an individual inherits the same DNA sequence for a certain gene from both biological parents. When a particular gene has identical alleles (versions) of chromosomes inherited from both parents, the gene is homozygous. A homozygous trait is referred to by two capital letters (XX) for a dominant trait, and two lowercase letters (xx) for a recessive trait.