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9 Cards in this Set
- Front
- Back
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the location of a particular gene on a chromosome
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locus
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how many crossovers take place duing meiosis I in germ cells?
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at least one
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when the distance between two genes is short, we say there is __ ___ between them
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close linkage
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every normal egg cell prodiced by a female has an __ chromosome
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X
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half of the sperm cells produced by a sperm cell have a __ chromosome, and half have a __ chromosome
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X, Y
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Human sex is determined by which gamete?
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sperm
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the inactivated X-chromosome in females condenses into what?
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barr body
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A person who is heterozygous for a recessive trait is considered a ______
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carrier
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if bother parents are carriers for a recessive trait, then the children have ___ chance of inheriting it
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25%
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