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7 Cards in this Set
- Front
- Back
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Y Chromosome -Smaller -Carries mostly genes associated with ? -SRY Gene |
Y Chromsome carries most genes associated with male sex determination
-SRY gene on Y chromosome codes for male features. |
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X Chromsome : |
Carries genes with essential functions unrelated to sex determination
X Linked Genes: Color blindess Muscular Dystrophy Hemophila |
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X Linked Patterns of inhertiance |
X linked trait can only be expressed if females are homozygous reccesive
or in males they only need 1 copy of reccesive allele.
X linked recessive disorders are much more common in males than in females |
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Barr Body |
In females, one of the two X chromosomes in randomly inactivated and condensed into a bar body occurs in embryogenesis, remains off in all daughter cells. |
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Recombination of linked genes : Crossing over |
Morgan discovered that genes can be linked on the same chromosome.
Prophase 1 |
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Genetic Map |
Ordered list of genetic loci along a particular chromosome.
The fatrther apart two genes are the higher likelihood a crossing over will occur and higher recombination frequency between two genes. |
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d |
sad |
