In corn, the allele A allows the deposition of anthocyanin (blue) pigment in the kernels (seeds), while aa plants have yellow kernels. At a second gene, W- produces smooth kernels, while ww kernels are wrinkled. A plant with blue smooth kernels was crossed to a plant with yellow wrinkled kernels. The progeny consisted of 1447 blue smooth, 169 blue wrinkled, 186 yellow smooth, and 1510 yellow wrinkled. a. Are the a and w loci linked? If so, how far apart are they? b. What was the genotype of the blue smooth parent? Include the chromosome arrangement of alleles. c. If a plant grown from a blue wrinkled progeny seed is crossed to a plant grown from a yellow smooth F1 seed, what kinds of kernels would be expected, and in what proportions?
. In corn, the allele A allows the deposition of
anthocyanin (blue) pigment in the kernels
(seeds), while aa plants have yellow kernels.
At a second gene, W- produces smooth
kernels, while ww kernels are wrinkled. A
plant with blue smooth kernels was crossed
to a plant with yellow wrinkled kernels. The
progeny consisted of 1447 blue smooth, 169
blue wrinkled, 186 yellow smooth, and 1510
yellow wrinkled.
a. Are the a and w loci linked? If so, how far
apart are they?
b. What was the genotype of the blue smooth
parent? Include the chromosome
arrangement of alleles.
c. If a plant grown from a blue wrinkled progeny
seed is crossed to a plant grown from a
yellow smooth F1 seed, what kinds of kernels
would be expected, and in what proportions?
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