mendelian genetics - dihybrids

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6 Terms

1
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what is a dihybrid cross

A cross between individuals that differ in two characters

2
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What ratio of phenotypes did Mendel observe in this type of cross in the F1 and F2 generations?

F1: only heterozygous; F2: 9/3/3/1

3
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what is the law of independent assortment

ALLELES at different loci separate independently of one another, two different genes will randomly assort their alleles during the formation of haploid cells

4
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how is the law of independent assortment related to the law of segregation

Both determined by how chromosomes are separated during meiosis

5
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what clue is “and” for

multiplication rule

6
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what clue is “either” “or” for

addition rule