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Aleksandr-060686 [28]
3 years ago
14

Brown eyes are dominant over blue eyes. If two brown eyed parents have a child with blue eyes, what does it mean about

Biology
2 answers:
Kitty [74]3 years ago
7 0

Answer:

The answer is D.

NISA [10]3 years ago
5 0

Answer:

°C. They must both be heterozygous.

Explanation: For a brown eyes parents to give birth to a blue eyes offspring it means the both parents are heterozygous.

Since D is for dominant allele and

d is for recessive allele

DD is for Homozygous individual (i.e) dominant gene

Dd is for heterozygous individual

dd is for homozygous recessive individual

Dd ×Dd- parents

|

DD Dd Dd dd - offsrings 1:2:1

DD- 1 brown eye homozygous offspring

Dd- 2 brown eye heterozygous offspring

dd- 1 blue eye homozygous individual

A cross between two heterozygous individual will lead to segregation of genes in the ratio 1:2:1 i.e 3 brown and 1 blue eye individual.

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