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23 Cards in this Set
- Front
- Back
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Evolutionary explanation of behavior
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artificial selection
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a process of selecting plants/ animals for desired traits
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autosomal genes
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all other chromosomes other than X and Y.
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chromosomes
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strands of genes |
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deoxyribonucleic acid(DNA) |
double stranded molecule that is part of the chromosomes |
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dizygotic
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fraternal(non-identical) twins derived from 2 eggs |
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epigenetics |
a field that deals with changes in gene expression without modification of the DNA sequence
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evolution
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change over generations in the frequencies of various genes in a population |
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fitness |
the spreading of genes; number of copies ones genes that endure in later generations |
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genes |
units of heredity that maintain their structural identity from one generation to another |
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heritability |
estimate of the degree to which variation in a characteristic depends on genetic variations in a given population. |
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heterozygous
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having two unlike genes for a given trait |
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homozygous |
having 2 identical genes for a given characteristic
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kin selection
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selection for a gene that benefits the individuals relatives |
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Lamarckian evolution |
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monozygotic
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twins derived from one egg |
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mutation |
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phenylketonuria (PKU) |
a genetic inability to metabolize the amino acid phenylalanine
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recessive
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one that shows effects only in the homozygous condition |
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ribonucleic acid(RNA)
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a single strand chemical |
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sex limited gene
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gene that exerts it affects primarily in one sex because of activation by androgens and estrogens, although members of both sexes may have the gene
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sex linked gene
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gene either X or Y chromosome |
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