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Alex
2 years ago
9

Many upper motor neurons synapse with lower motor neurons in the ___________.

Biology
1 answer:
Afina-wow [57]2 years ago
5 0

Answer:

The correct answer will be- anterior horn cells

Explanation:

The upper motor neurons in the system of motor neurons of the central nervous system.

The motor neurons transmit the signals from the CNS to the skeletal muscles and thus controls the voluntary movement and maintain the posture of the body.

The motor neurons of the upper system synapse with the lower motor neurons in the cell bodies of the lower motor neurons located in the grey matter of the spinal cord.

The cell bodies where upper neurons synapse with lower neurons are known as anterior horn cells in which the interneurons connect these neurons.

Thus, anterior horn cells are the correct answer.

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which example of a missense mutation in a protein-encoding gene would most likely be a neutral mutation?
KATRIN_1 [288]

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

3 0
1 year ago
Which element has a total of 7 atoms present in the formula C6H5NH2?
marusya05 [52]

Answer:

Hydrogen

Explanation:

If you combine the atoms of H2 and H5, you get 7

4 0
2 years ago
What are compounds?<br> A. homogeneous mixture<br> B. heterogeneous mixture <br> C. pure substances
sammy [17]
C. pure substances
Hope this helps.
6 0
3 years ago
Read 2 more answers
What does spontaneous generation mean?
sladkih [1.3K]

Explanation:

production of living organism from nom living matter is known as spontaneous generation.

5 0
3 years ago
The hypothesis that, when life originated on Earth, a macromolecule other than DNA served in the role of information storage, an
Andreas93 [3]

Answer:

RNA world hypothesis.

Explanation:

RNA is present as the genetic material in some viruses only. RNA is produced from the template DNA by the process of transcription and helps in the protein gene expression.

According to RNA world hypothesis, RNA is considered to be the first genetic material as it has the ability to store the genetic material. The oxyribose sugar makes the RNA more reactive than the DNA molecule. The RNA also has the ability to work enzyme known as ribozyme. Hence, RNA has the ability to store the information and acts as catalyst.

Thus, the answer is RNA world hypothesis.

4 0
3 years ago
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