Assume that there is complete dominance and complete penetra

Assume that there is complete dominance and complete penetrance at each locus and that epistasis does not occur. Write your answers in numeric form.

Referring to the cross DdFFGghhRrTt x DDffGgHhRRTt:

How many different gametes does the DdFFGghhRrTt parent produce? ___________

How many different genotypes are found among the progeny of this cross? __________

How many different phenotypes are found among the progeny of this cross? __________

What is the probability that the first offspring from this cross will show the dominant phenotype for all loci? (Type in as a decimal and round to 6 digits.) ________

What is the probability that the first offspring from this cross will be heterozygous for all loci? (Type in as a decimal and round to 6 decimal digits.) __________

What is the probability that the first offspring from this cross will be a son with genotype DDFfGghhRrTt? (Type in as a decimal and round to 6 decimal digits). __________

Solution

1. DdFFGghhRrTt parent produces 16 gametes.

2. 72 genotypes are found among the progeny of this cross.

3. 8 phenotypes are found among the progeny of this cross.

4. 0.28125 is the probability that the first offspring from this cross will show the dominant phenotype for all loci.

5. 0.06250 is the probalility that the first offspring from this cross will be heterozygous for all loci.

6.