121742
Description
Mind Map by harry_bygraves, updated more than 1 year ago
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Created by harry_bygraves
over 11 years ago
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Sex linkage
- Human sex is determined by a pair of sex chromosomes
called X and Y. Because these chromosomes do not look
alike, they are sometimes referred to as heterzygous.
- X-linkage; sex linkage results in an inheritance pattern of different from that
shown by genes carried on autosomes. In x-linkage, a recessive allele is
expressed more often in males than in females because males carry only one
allele for an X-linked gene, whereas females have two alleles for the gene
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