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9) Fill out the summary chart below for Generations 1-3 for the numbers of individuals with...

9) Fill out the summary chart below for Generations 1-3 for the numbers of individuals with the different genotypes, and the total number of dominant and recessive alleles in the population.

RR

Rr

rr

Total # R alleles

Total # r alleles

Generation 1

4

Generation 2

Generation 3
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Answer #1

1) For the first generation suppose both the parents are homozygous dominant R allele they genotype will RR and the offspring will have the same phenotype as RR

                                                           RR x RR

Suppose in the generation 2 the genotype of both the parents is heterozygous Rr then offspring will have the following genotypes.

                                                   Rr   x Rr

  

In the third generation if the genotype of one parent is heterozygous Rr and the other parentis rr then the following genotypes seen

Rr x rr

  

And from the above data the following table information is

RR

Rr

rr

Total # R alleles

Total # r

Generation 1

4

0

0

8

0

Generation 2

1

2

1

4

3

Generation 3

0

2

2

2

6
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