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Natalija [7]
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?
Biology
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>

5 0
4 years ago
The unit of androecium is​
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Answer:

<u><em>The unit of androecium is stamen. The plural of stamen is either stamina or just stamens. An androecium is usually made up of multiple stamina </em></u>

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In recent years, the controversy surrounding environmental issues has decreased. True or false?
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False
Environmentalists are complaining now about so-called "issues" more than ever.
8 0
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7. Reena segregates the waste at home and put the bio-degradable waste in a pot containing soil. She leaves it for 15 days and u
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Answer:

a.to make the soil has more nutrients

Explanation:

remember waste it's aits like manure which increases more nutrients in the soil or plants and it's enrich

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Describe the specific functions of the glial cells found in the white and gray matter on the slide. how do they differ from what
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<span>Glial cells in the white matter help promote communication between the nerve impulses in the gray matter. They differ because in the peripheral nervous system there is more of a fatty substance that acts as a cushion between the impulses, which is a little different than helping the nerve impulses along intentionally. The cushioning may aid in transmission indirectly, but serves as more of a safety zone.</span>
4 0
3 years ago
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