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Dima020 [189]
4 years ago
7

A young man knows that his grandfather had Huntington disease (genotype Hh). However, his father passed away at the age of 26 wi

thout ever being tested or showing signs of HD. His mother did not have Huntington disease. What is the probability that this young man will develop HD when he is older?
A. 1/4
B. 1/2
C. 0
D. 1
Biology
1 answer:
Alexus [3.1K]4 years ago
8 0

Answer:

1/4

Explanation:

The reason that the answer is 1/4 is because the young man, his grandfather, his father, and his mother equal 4 people. The young man is 1 person. 1 person/4 people = 1/4.

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  • Normal definition: The action of breathing, also called ventilation.

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Why is a stethoscope cold on your skin?
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Metal

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Because it is metal)

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What are 2 ways organisms of the Galapagos Islands are protected?
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Answer:

I don't have two but here is one.

Explanation:

In 1998, the Ecuadorian government enacted the Galápagos Special Law, a legal framework to protect the Galápagos.

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3 years ago
Siamese cats have pale, cream-colored bodies with dark brown fur on their extremities (their ears, face, legs, and tail). Siames
svet-max [94.6K]

Answer:

Melanin

Explanation:

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Siamese cats has a gene that produces melanin (gives hair color) depending on body temperature.

This gene stops painting color when the average temperature of cats is exceeded. This absence of color (that is, white cat) causes several curiosities to occur:

1) Siamese cats that are subjected to higher temperatures, for example in summer, can develop a partial albinism.

2) Siamese babies are usually born very white, because in the mother's womb the temperature is warm. As they come in contact with the outside, the gene begins to color their fur.

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4 0
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Retroviruses __________. View Available Hint(s)for Part A include the viruses that cause warts contain reverse transcriptase enz
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The Retroviruses contain reverse transcriptase enzymes that make a dsDNA molecule from their ssRNA genome.

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These viruses are capable of causing the following diseases :

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They are usually transmitted during close contacts.

Therefore, the Retroviruses contain reverse transcriptase enzymes that make a dsDNA molecule from their ssRNA genome.

Learn more about Retroviruses here:

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7 0
2 years ago
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