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Ilia_Sergeevich [38]
4 years ago
6

How does the structure of a distinctive layer that is used as a marker determine it's function?​

Biology
1 answer:
Margaret [11]4 years ago
5 0

Answer:

Keratin has two main functions: to adhere cells to each other and to form a protective layer on the outside of the skin. In epithelial cells, keratin proteins inside the cell attach to proteins called desmosomes on the surface. The desmosomes act as anchors, holding the cells together.

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The fatal human illness called Huntington disease is caused by a dominant mutant allele. Calculate the probability that a couple
BaLLatris [955]

Answer: There is a 50% chance that the offspring will inherit Huntington's disease

Explanation:

Huntington's disease is expressed by a dominant allele.

Since the father is heterozygous for Huntington's disease, his genotype would be as follows:Hh

Even though he carries a normal allele, the dominant allele is disease causing and thus masks the effects of the normal allele, therefore he expresses the disease.

The mother does not have Huntington's because she is homozygous recessive, in other words, she carries 2 copies of the normal alleles.with the genotype hh.

If you do a punnet square, and you cross the mother and father, the following genotypes can be produced:

Hh, Hh, hh, hh

Therefore, there's a 50% chance that the offspring will inherit the disease causing allele and 50% chance that the offspring will not inherit it.

7 0
3 years ago
Coal-fired power plants release emissions such as nitrogen compounds into the air. The nitrogen and water cycle combine when nit
Mumz [18]

Answer:

Precipitation

Explanation:

Precipitation refers to the falling of the condensed form of water vapor as a result of gravity. The given excerpt presents the process of precipitation of Nitrogen along with the water vapor. The nitrogen gets mixed along with the water vapor and returns to the soil. This process of returning after passing through the process of condensation is termed to be precipitation.

7 0
3 years ago
2. What is an example of fast and dramatic erosion?
jonny [76]

Explanation:

Erosion by Ice Ice, usually in the form of glaciers, can erode the earth and create dramatic landforms. In frigid areas and on some mountaintops, glaciers move slowly downhill and across the land. As they move, they transport everything in their path, from tiny grains of sand to huge boulders.

3 0
3 years ago
According to the cladogram below, which of the following organisms had a
Pachacha [2.7K]
It is possibly C because it has the jaws in front but not near the limbs.
7 0
2 years ago
Non example of a biospher
pickupchik [31]

Answer:

k

Explanation:

6 0
4 years ago
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