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Ahat [919]
3 years ago
15

Testosterone causes secondary male characteristics list 3 such characteristics

Biology
1 answer:
Nonamiya [84]3 years ago
6 0
1) appearance of beard and moustache

2) broadening of chest and shoulders

3) changing of voice into a more grave one
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2 years ago
A pea plant that has round seeds has the genotype Rr. It is crossed with a pea plant that has wrinkled seeds and the genotype rr
Mariulka [41]
The correct answer is 50%, or 1/2. We know that round seeds are dominant, since the round pea plant has a genotype of Rr and the wrinkled pea plant has a genotype of rr. If it helps, draw a Punnett square with the two genotypes.

   R  r
r
r

The square works exactly like a coordinate grid. Combine the letters above and beside whichever of the four spaces you chose to find the genotype for that space.

   R  r
r Rr  rr
r Rr  rr

Therefore, 2 out of 4 of the pea plants have round seeds, since a genotype of Rr means that a plant will have round seeds, and 2 out of 4 will have wrinkled seeds, since a genotype of rr means that a plant will have wrinkled seeds. 2/4 simplifies to 1/2, or 50%. Therefore, there is a 50% chance that the offspring will have wrinkled seeds.

Hope this helps!


6 0
3 years ago
Which gland is known as the "master gland" because it sends chemical messages to many other glands?
natima [27]

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What increases the amount of solar energy in a region
Kitty [74]

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The amount of sunlight

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solar energy comes from the sun and uv rays this is my explanation

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