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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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1,why Dna coiled to histone protien 2,what is difference bewteen co-factor and prosthetic group 3,why child get mitrochondrion f
Artyom0805 [142]

Answer:

DNA coiled to Histone protein.

Explanation:

1) DNA wrap itself around the histone protein due to the negative charge on the histone, that packed DNA tightly so that it can't be used in protein synthesis.

2) Prosthetic groups are itself co-factors that bind tightly to enzymes or proteins. they can be organic or metallic ions and attached to proteins by covalent bond.

3) The transfer of mitochondrial DNA (mtDNA) from mother to  her offspring is known as  maternal inheritance. only female can transmit  mtDNA beacuse, it can be transmitted through female eggs only. One can inherit mtDNA from exclusively their mother.

7 0
4 years ago
What cause the loss of wetlands
Andre45 [30]
Pollution can cause the loss of wetlands. The unsafe environment around wetlands can contaminate the water.
4 0
3 years ago
A section of one DNA strand has the sequence ACC GAG GTT. What is the sequence of the strand it binds to?
Pepsi [2]

Answer:

UGGCUCCAA

Explanation:

Basically when you transcribe DNA into mRNA, you find the complementing base pair, for example if G is written in the DNA, the mRNA would show C, and if an A was in the DNA, a U would be shown. It is NOT THYMINE in RNA!! This changes to Uracil in RNA, and that is VERY important. The reason why it is flipped is because of the tRNA. So 3 mRNA nucleotides make a codon, and the tRNA are also in sets of 3, but are called anticodons. The tRNA is complementary to the mRNA strand, AKA the same as the DNA strand except with Uracil instead of Thymine. This is because Thymine breaks down in the presence of Oxygen and so is replaced by Uracil.

7 0
3 years ago
Which of the following problems could potentially be solved through DNA fingerprinting?
Bas_tet [7]

Answer:

answer is clearly a

Explanation:

my teacher told me

7 0
3 years ago
A geologist who needed to correlate two rock formations in different areas could use a key bed for this work.
Agata [3.3K]

True

Explanation:

Besides using fossils, a geologist who needs to correlate two rock formation in different areas can use key beds for his work.

Key beds are very distinct layers that has a large geographical range.

  • Correlation is the process of matching rock sequences across different terrains.
  • This is usually done using index fossils and key beds.
  • Key beds are good indicators of homogeneity in an area.

learn more:

Fossils brainly.com/question/12790206

#learnwithBrainly

3 0
3 years ago
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