Wet earwax is an autosomal dominant trait. Dry earwax is the recessive form of the trait. Using your own allele symbols (provide a legend), determine the proportions of genotypes and phenotypes of possible offspring from the following parents: a. the mother has dry earwax; the father has wet earwax and his mother had dry earwax. b. one parent has dry earwax; the other parent is homozygous for wet earwax. c. both parents have wet earwax; each had one parent with dry earwax.
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Step 1
The mother has dry earwax, so her genotype must be ww. The father has wet earwax, but his mother had dry earwax, so his genotype must be Ww. We can use a Punnett square to determine the possible offspring genotypes and phenotypes: | | W | w | |---|---|---| | w Show more…
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