LS4 MT2 practice

LS4 MT2 practice - Name LS 4 INTRODUCTORY GENETICS MIDTERM...

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Unformatted text preview: Name_________________________ LS 4 INTRODUCTORY GENETICS MIDTERM II practice problems Name_________________________ 1 The following cross is done in the Pea plant. P AAbb x AAbb ↓ F1 AaBb These F1 progeny are then testcrossed as follows: AaBb x aabb The A and B alleles are dominant and the a and b alleles are recessive. If the A locus and B locus are on different chromosomes, what ratio of phenotypes would you expect among the progeny. phenotypes → AB : Ab : aB : ab fill in expected ratios → : : : . If the A locus and B locus are on the same chromosome and linked so tightly that no recombination is detected between them, what ratio of phenotypes would you expect among the progeny. phenotypes → AB : Ab : aB : ab ratios → : : : . If the A locus and B locus are on the same chromosome and separated by 20 map units, what ratio of phenotypes would you expect among the progeny. phenotypes → AB : Ab : aB : ab ratios → : : : . Name_________________________ 1 The following cross is done in the Pea plant. P AAbb x AAbb ↓ F1 AaBb These F1 progeny are then testcrossed as follows: AaBb x aabb The A and B alleles are dominant and the a and b alleles are recessive. If the A locus and B locus are on different chromosomes, what ratio of phenotypes would you expect among the progeny. phenotypes → AB : Ab : aB : ab fill in expected ratios → : : : . If the A locus and B locus are on the same chromosome and linked so tightly that no recombination is detected between them, what ratio of phenotypes would you expect among the progeny....
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This note was uploaded on 04/15/2010 for the course LS LS 4 taught by Professor Ribaya during the Winter '07 term at UCLA.

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LS4 MT2 practice - Name LS 4 INTRODUCTORY GENETICS MIDTERM...

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