3. (2 pts) A plant with the genotype AB/ab is testcrossed to a homozygous recessive plant...
3. (2 pts) A plant with the genotype AB/ab is testcrossed to a homozygous recessive plant (ab/ab). If the loci are 28 m.u. apart, what proportion of progeny will be AB/ab? Explain your answer.
Homework Answers
AB/ab can produce gametes
AB, ab, Ab and aB among these Ab and aB are recombinant gametes
these genes are located 28 mu apart so recombination frequency=28%
recombination frequency= number of recombinants/total number*100
that is the percentage of recombinants= 28% so each aB and Ab are produced 14% each
percentage of Non-recombinants= 72% so each parental gametes are produced 36% each
so the proportion of AB/ab progenies=36%
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