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Anika [276]
2 years ago
6

3. Is a bone a living structure, or merely a deposit of mineral compounds?

Biology
1 answer:
prisoha [69]2 years ago
5 0

Answer:

A bone is a living structure

Explanation:

A bone is a rigid organ that constitute part of the vertebrates skeleton in animals.

Bones protect the various organs of the body

It produces red and white blood cells

It stores minerals

It also enables mobility

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1. B

2. B

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In humans, hemophilia is caused by a recessive allele on the X chromosome. Suppose a man with hemophilia has children with a hea
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Answer:

The answer is 50

Explanation:

Hemophilia is a X-linked disease. That means the recesive allele which causes the disease is not in Y chromosome, but only in X chromosome.  If we denote:

X⁺ : dominant allele

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Then, in a woman there are three posibilities:

X⁺X⁻: is a carrier woman (without hemophilia)

X⁺X⁺: healthy woman

X⁻X⁻: woman with hemophilia

But in a man there are two posibilities:

X⁺Y: healthy man

X⁻Y: man with hemophilia

A man with hemophilia is X⁻Y, and a healthy woman whose mother had hemophilia is a carrier woman (X⁺X⁻). If they have a child, there are 4 posibilities, and each one has 1/4 of occurrence probability:

X⁻Y  x  X⁺X⁻ = X⁻X⁺, X⁻X⁻, X⁺Y, YX⁻

Posibilities with hemophilia are X⁻X⁻ and YX⁻ (1/4 + 1/4= 1/2= 0.5= 50%)

In each filial, there is a 50 percent of probability of having a child (man or woman) with hemophilia.

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Which of the following represents a pattern in the
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