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15 Cards in this Set
- Front
- Back
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The study of heredity
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Genetics
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Two of the same alleles at a locus
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Homozygous
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Two different alleles at a locus
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Heterozygous
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Alternate type of a gene
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alele
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Only one allele in heterozygote is expressed
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dominant allele
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Allele not expressed in a heterozygote
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recessive allele
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Alleles of an individual received at fertilization
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genotype
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Physical appearance of the individual
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phenotype
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The members of each pair of factors segregate independently of all other pairs
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law of independent assortment
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Each organism contains two factors for each trait and that the factors segregate during the formation of gametes so that each gamete contains only one factor from each pair
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law of segregation
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Genes on sex chromosomes that effect traits other than sex of the individual
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X-Linked; sex-linked
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If two normal parents have an albino (lacking pigment ) child, what is the probability that the next child is albino?
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25%
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What is the probability that the parents described above will have a normal child?
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75%
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A hemophiliac is married to a normal woman. What are the chances that the sons will be hemophiliacs?
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0
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The gene for hairy ears is a Holandric trait. A man with hairy ears marries a normal woman. What chance is there that their sons will have hairy ears?
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100%
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