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BI 311

Genetics

TermDefinition
Autosomal Recessive Affects both sexes equally; skips generations; when both parents are heterozygotes, 1/4 of offspring will be affected; consanguine marriages
Autosomal Dominant Affects both sexes equally; does not skip generations; when one parent's heterozygous and other's homozygous, 1/2 offspring will be affected
X-Linked Recessive Affects males more than females; skips generations; heterozygous mother (carrier) affects 1/2 her sons; fathers never pass to sons, but pass to all daughters
X-Linked Dominant Affects females more than males; does not skip generations; heterozygous mother passes trait to 1/2 their sons and 1/2 their daughters; fathers pass trait to all their daughters; affected sons will have affected mother
Y-Linked Affects males only; does not skip generations; passed from father to all sons
Silent Mutation Nucleotide is changed, but amino acid is not
Missense Mutation Mutation that changes the amino acid
Nonsense Mutation Mutation that changes the amino acid into a stop codon
Neutral Mutation Change has no effect on the organism's fitness
Independent Segregation Which allele one offspring gets from a parent is random
Independent Assortment Alleles at different loci are independent
Created by: 100000033006215