Heredity and Genetics Vocab.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| adaptations | the ability of a species to survive in a particular ecological niche, esp. because of alterations of form or behavior brought about through natural selection
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| body cells | cells that play no direct part in fertilization
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| dominant character | inherited trait that overshadows the recessive trait and keeps it from showing in a hybrid
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| dominant genes | genetic material that controls the dominant character traits
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| flagellum | the whiplike tail that forms on a sperm cell, enabling it to move
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| genetics | the science that studies heredity
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| heredity | passong on of traits, or characteristics, from parent to offspring
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| hybrids | offspring of a cross of parents having contrasting traits; contain two unlike genes for a trait, and exhibit the dominant trait
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| incomplete dominance | blending inheritance; appearance of offspring is a mixture of the parents' contrasting traits
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| meiosis | special kind of cell division that forms sex cells
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| purebred | offspring are just like the parents in possessing two of the same genes for a trait
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| recessive character | inherited teait that is overshadowed by a do,inant trait and is kept from showing in a hybrid
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| recessive genes | genes for a recessive trait; overshadowed by dominant genes
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| reduction division | cell division in which each new cell receives one-half the species number of chromosomes; occurs during formation of sex cells
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| species number | number of chromosomes characteristic of the body cells of a species
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| variations | differences that exist among all orfanisms of the same species
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