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11 Cards in this Set
- Front
- Back
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What is a zygote?
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Eggs and sperm each have one single set of chromosomes. When egg and sperm join, they form one complete set in a zygote 23+23=46
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What are alleles?
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Alternate forms of the same gene; allows for variations in traits
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Describe homozygous
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having a pair of matching alleles for a trait ex. HH or hh
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What is a trait?
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a notable quality or feature of a person; can be inherited; can be affected by genes and environment
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What are physical traits?
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characteristics of your physical appearance: hair color, eye color and height
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What are behavioral traits?
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characteristics of how one acts
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Describe: predisposition to medical condition traits
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an increased risk of getting a particular disease
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Describe heterozygous
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having two different alleles for a trait, ex. Hh H is dominant, h is recessive
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Describe identical DNA
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humans share 99.9% identical DNA; it's the few differences that create diversity
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What is heredity?
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passing of traits from parent to child
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What are genes?
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found in chromosomes, are coded instructions for what a body needs, are part of DNA
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