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| the cross between two pure breeding different varieties of an organism taking alternate traits of one single character |
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| the ratio obtained in the progeny F2 generation crossing alternate traits of one single character |
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| out of a pair of contrasting characters, present together only one is able to express itself, while the other is supressed |
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| law of independent assortmant |
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| the distribution of the members of one pair into the gametes in independent of the distribution of the other pair |
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| the two members of a pair of factors, separate during the formation of a gamete |
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| the condition in which a pair of chromosomes carry dissimilar alleles for a particular character. |
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| the condition in which a pair of chromosomes carry similar alleles for a particular character |
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| combination of genes in an organism |
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| the expressed character which is genetically controlled |
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| the sudden change in one or more genes or in the number or structure of chromosomes. |
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| hemophilia , sickle cell anemia |
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