In a certain plant species, the allele for wrinkled seeds (W) is dominant to the allele for smooth seeds. What is the phenotype result of a cross between a true-breeding wrinkle-seeded group of plants and a true-breeding smooth-seeded group of plants? A. all smooth seeds, no wrinkled seeds B. 1/4 smooth seeds, 3/4 wrinkled seeds C. all wrinkled seeds, no smooth seeds D. 1/4 wrinkled seeds, 3/4 smooth seeds

Question

Biology

Isaias Ellison

3 September, 03:15

In a certain plant species, the allele for wrinkled seeds (W) is dominant to the allele for smooth seeds. What is the phenotype result of a cross between a true-breeding wrinkle-seeded group of plants and a true-breeding smooth-seeded group of plants? A. all smooth seeds, no wrinkled seeds B. 1/4 smooth seeds, 3/4 wrinkled seeds C. all wrinkled seeds, no smooth seeds D. 1/4 wrinkled seeds, 3/4 smooth seeds

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Chester · Answer 1

It would be C.

Using a punnett square, who get the following genotypes:

Ww

Ww

Ww

Ww

Since W is for wrinkled seeds, and is dominant, all the seeds would have the wrinkled seed phenotype.