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leva [86]
3 years ago
9

In corn, smooth kernels (K) are dominant to wrinkled kernels (k).

Biology
1 answer:
Roman55 [17]3 years ago
5 0

Heterozygous means 2 different zygotes. Since Smooth kernels are dominant, Zygotes KK and Kk will be smooth and kk will be wrinkled.

If you were to set up a Punnett Square chart like:

           K     k

   K   (KK)    (Kk)

   k   (Kk)     (kk)

the ratio for smooth to winkle would be  3 : 1

Which Will be 75% Smooth  and 25% Wrinkle

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It is stated that the long finger trait is a recessive trait with 80% penetrance which means that even if the genotype suggests that the trait will be observable, it is only 80% of the time.

There is a 75% chance that their first child will inherit the recessive long finger trait gene l and with an 80% penetrance, the probability of the child having long fingers is 60%.

I hope this answer helps.

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