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Bingel [31]
2 years ago
11

Who is experiencing the first indicator of the onset of puberty in a typical female? a. Mary, whose pubic hair has started to gr

ow b. Terri, who has just begun to ovulate c. Carrie, who has just begun to menstruate d. Geri, whose breasts have started to grow
Biology
1 answer:
Anika [276]2 years ago
8 0

Answer:

D

Explanation:

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Dogs can inherit four features: fur pattern, fur length, ear length, and tail length. The alleles are expressed as shown:
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Explanation:

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3 years ago
If two intermediate-colored chickens together produced 100 chicks, how many would you expect to be black?
sergiy2304 [10]

Answer: 25 of the chicks will be black

Explanation: Since the chickens are intermediate in colour, that is they are not black, they are heterozygous. Let B represent the allele for black colour and B represent the allele for blue colour, therefore the genotype of a chicken with an intermediate colour is Bb. A cross between two Bb chicken will produce 1 BB, 2 Bb and 1 bb chicks. 1 BB will manifest outwardly as black, 2Bb will manifest outwardly as intermediate colored while 1 bb will manifest outwardly as blue colored chicks.

Since one out of four chicks are black colored, if the two chicken produced 100 chicks, the number of chicks that will be black is 1/4 x 100 = 25. Therefore, 25 chicks out of 100 will be black.

See the attached punnet square for more information

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3 years ago
In some plants, phloem cells are connected end-to-end by sieve plates, creating a direct connection between the cytoplasm of phl
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Answer:

Explanation:

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Cells like muscle cells and neurons (brain cells) depend on having a lot of
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