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10 Cards in this Set
- Front
- Back
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monohybridcross and dihybridcross |
A dihybrid cross involvesorganisms that are heterozygous for two characters and a monohybrid crossinvolves organisms that are heterozygous for only one character. |
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Mendel accounted for theobservation that traits which had disappeared in the F1 generation reappeared in the F2 generation by proposing that |
traits can be dominant or recessive, and therecessive traits were obscured by the dominant ones in the F1. |
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Two plants are crossed,resulting in offspring with a 3:1 ratio for traits of a particular character.What does this suggest? |
that the parents were both heterozygous for asingle trait |
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The fact that all seven ofthe pea plant characters studied by Mendel obeyed the principle of independentassortment indicates which of thefollowing? |
All of the genescontrolling the traits behaved as if they were on different, nonhomologouschromosomes, or located far apart on the same chromosome. |
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Mendel's observation of thesegregation of alleles in gamete formation has its basis in which phase of cell division? |
anaphase I of meiosis |
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A testcross involvescrossing with a(n) _________ individual and is used to determine the _________of the tested parent. |
homozygous recessive; genotype |
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allele |
one of two or more forms of a gene. |
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If blending inheritance wasan accurate model of transmission genetics |
Variation in natural populations would decreaseover time. |
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genotype |
the particular combination of allelespresent in a given organism. |
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Different genes that are____________________ do not assort independently and are said to be______________. |
close to one another on the same chromosome;linked |
