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3 years ago

6

For humans, brown eyes (B) are dominant over blue eyes (b). If a heterozygous brown-eyed male had a child with a blue-eyed femal

e, what percentage of the offspring (F1 generation) would have blue eyes?

1 answer:

mario62 [17]3 years ago

5 0

Answer:

50%

Explanation:

When you use a monohybrid cross you will get Bb, Bb,bb,bb

Since the brown eyed are heterozygous.

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Two guinea pigs, both with the genotype AaBb, produce a large number of offspring. The A gene codes for the presence of white co

Damm [24]

Answer:

<em>Bright white fur 3/4</em>

<em>Black fur 3/16</em>

<em>brown fur 1/16</em>

Explanation:

From the Punnet's square analysis (see the attached image);

<em>A_B_ 9/16 </em>
<em>A_bb 3/16</em>
<em>aaB_ 3/16</em>
<em>aabb 1/16</em>

A_B_ and A_bb will always give offsprings with bright white fur since allele A always mask the effect of B.

aaB_ will always give offsprings with black fur since allele a does not produce any protein.

aabb will give offsprings with brown fur since b codes for brown fur colour.

Hence, the phenotypic ratio of the offspring will be;

<em>Bright white fur 3/4</em>

<em>Black fur 3/16</em>

<em>brown fur 1/16</em>

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Answer:

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Answer:

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