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gogolik [260]
3 years ago
11

19. One long-lasting effect of a pandemic influenza is that: A. Survivors may develop severe psychological problems B. Some vict

ims may not be identifiable through usual identification methods C. Families will not be able to claim their relatives' remains as the virus 'gases out' D. The population must be concerned about the virus returning in subsequent years
Biology
1 answer:
Ksenya-84 [330]3 years ago
5 0

Answer:

A.

Explanation:

survivors may develop huge psychological problems due to the remaining options in the question

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which example of a missense mutation in a protein-encoding gene would most likely be a neutral mutation?
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An example of a missense mutation in a protein-encoding gene would most likely be a neutral mutation is option B: replacement of a polar amino acid with another polar amino acid at the protein's surface.

A frequent and well-known example of a missense mutation is the blood condition sickle-cell anemia. Missense mutations exist in the DNA at a single location in sickle-cell anemia patients. A different amino acid is required in this missense mutation, which also alters the overall structure of the protein. Similarly, replacement of a polar amino acid by another polar Ami no acid at the protein's surface is a missense mutation causing change in a single site.

A neutral mutation is one whose fixation is unrelated to natural selection. Therefore, the independence of a mutation's fixation from natural selection can be used to define the selective neutrality of a mutation.

To know more about mutations, refer to the following link:

brainly.com/question/20407521

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Complete question is:

Which example of a missense mutation in a protein-encoding gene would most likely be a neutral mutation?

a) Replacement of a polar amino acid with a nonpolar amino acid at the protein's outer surface

b) Replacement of a polar amino acid with another polar amino acid at the protein's surface

c) Replacement of a polar amino acid with another polar amino acid in the protein's interior

d) Replacement of a polar amino acid with a nonpolar amino acid in the protein's interior

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1 year ago
Almost all animals share the following characteristics except
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The correct answer is A.

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Animal cells are instead covered by a cell membrane. It is made up of lipids, proteins, and small amounts carbohydrates. It is a thin and delicate structure  that can only be seen using an electron microscope.

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