6. List the possible genotypes of the gametes formed by an individual with the g

Question

6. List the possible genotypes of the gametes formed by an individual with the genotype of AaBbcc, assuming independent assortment.

7. How many different gametes are formed by an organism with the genotype AaBbCcDdEeFf with all genes exhibiting independent assortment?

8. How many different genotypes are produced by a cross between two organisms with the above genotype?

9. How many different phenotypes are produced by a cross between two organisms with the above genotype?

10. A tall pea plant with yellow seeds is heterozygous for both genes. If the plant is crossed with dwarf pea plant with green seeds (a testcross), what would be the phenotypic ratio for plant height/seed color for the progeny?

11. A tall pea plant with yellow seeds is self-fertilized and produces 1000 progeny plants as follows: 530 tall/yellow, 200 tall/green, 200 dwarf/yellow and 70 dwarf/green.

If you assume that the original plant is heterozygous for both alleles, what is the chi-square value?

12. Estimate the p value?

13. Does the p value reject or fail to reject the null hypothesis?

14. A pea plant heterozygous for seed shape is self-fertilized. What is the probability that two of four progeny plants will have smooth seeds?

Explanation / Answer

6. The possible genotypes of the gametes formed by an individual with the genotype of AaBbcc are, ABc, ABc, Abc, Abc, aBc, aBc, abc, abc.

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