Answered

Part 1:
A cat that is heterozygous for PKD is bred with a cat that does not have PKD. Use a Punnett square to determine the probability of the possible genotypes and phenotypes in the offspring. Explain your results in paragraph form.

Part 2:
If a cat does not have PKD, what can you conclude about the genotypes and phenotypes of its parents? Explain your answer in paragraph form.



Answer :

GinnyAnswer

Final answer:

Using Punnett squares to predict genotype probabilities in offspring and deducing genotypes of parents without PKD.


Explanation:

Punnett square is a tool used to determine the probability of genotypes in offspring. When a heterozygous cat for PKD is bred with a cat without PKD, the Punnett square predicts that there is a 50% chance the offspring will be heterozygous for PKD, and a 50% chance they will not have PKD.

For parents without PKD, if a cat does not have PKD, it must inherit a dominant allele from each parent. Therefore, both parents must either be homozygous dominant (PP) or heterozygous (Pp) for PKD to produce a cat that does not have PKD.


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