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13 Cards in this Set
- Front
- Back
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inherited
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traits that pass from parents to their offspring
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What are some visible traits inherited by humans?
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1. nose size
2. nose shape 3. hair color 4. eye color 5. hair texture |
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What part of a chromosome carries information and controls a trait?
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a gene
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In the offspring of plants and animals, how many genes for a trait are usually inherited?
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at least two
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Where do the two genes for each trait in an offspring come from?
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one gene for each trait comes from each parent
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dominant gene
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a gene that can prevent the expression of another gene
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recessive gene
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a gene whose expression is hidden by a dominant gene
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When a dominant and a recessive gene are paired, which one can hid the effect of the other gene?
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the dominant gene
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hybrid
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an individual that has a dominant and a recessive gene for a trait
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mutation
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a permanant change in the strucutre of a gene or chromosome
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What are some mutations that are visible from the outside?
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-different eye colors
-squirrel with white fur -sheep with short legs |
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What are some mutations that are not visible from the outside?
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diseases such as hemophilia, sickle cell anemia, and cystic fribrosis
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What is the name of the diagrams that record how traits can be inherited when living things reproduce?
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Punnett squares
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