Homework Answers
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The question is comprised of four genes. Each having two alleles, one being dominant and the other being recessive.
A = tall is dominant over a = dwarf
B = green is dominant over b = yellow
D = axial is dominant over d = terminal
E = white flowers is dominant over e = pink flowers
The parental genotypes are AaBbDdEe and AabbDdEe.
Assuming that these loci undergo independent assortment, we have following gametes formed for each parent:
1. AaBbDdEe = ABDE, ABDe, ABdE, ABde, AbDE, AbDe, AbdE, Abde, aBDE, aBDe, aBdE, aBde, abDE, abDe, abdE, abde.
2. AabbDdEe = AbDE, AbDe, AbdE, Abde, abDE, abDe, abdE, abde
Now, since locus segregates independently, we can analyze selectively the locus of interest.
We are interested in the A and E and desired offsprings are dwarf and have pink flowers. Thus, they should have aa and ee irrespective of the other alleles.
As can be seen from 1 and 2, 50% gametes produced have A allele and 50% have a allele in either parents. The same is the case for alleles E and e.
Thus, this is a dihybrid cross and the phentoypic ratio will be 9:3:3:1. The desired phenotype is of the recessive type. The probability hence can be given by 1/(9+3+3+1) = 1/16.
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please answer 13 in detail and drawings of small punnet squares. This question was already posted...
please answer 13 in detail and drawings of small punnet squares.
This question was already posted on Chegg multiple times, but they
do not draw out the punnet squares or calculations.
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please answer 13 in detail and drawings of small punnet squares.
This question was already posted on Chegg multiple times, but they
do not draw out the punnet squares or calculations.
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