Questions
What is the probability of getting double homozygous recombinants in the F2 generation of a Mendelian dihybrid cross?
a
4/16
b
2/16
c
9/16
d
12/16
detailed solution
Correct option is B
If a cross was made between a plant having round and yellow seed plant with another plant having wrinkled, green seeded then the F2 generation shows the phenotypic ratio as 9:3:3:1 . The genotypic ratio is 1: 2 : 2 : 4 : 1 : 2 : 1 : 2 : 1. In this 2/16 of the plants will have homozygous recombinants (rrYY and RRyy). Therefore, the ratio will be 2/16.Talk to our academic expert!
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Find the probability of occurrence of a progeny with Bbll genotype in the following Mendelian test cross:
BbLl × bbll
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