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I am Lyosha [343]
3 years ago
14

​the symptoms of ____ are caused by progressive demyelination of nerve cells in the brain and spinal cord. ​multiple sclerosis ​

epilepsy ​encephalitis ​meningitis
Biology
1 answer:
nika2105 [10]3 years ago
3 0

The correct answer is multiple sclerosis.

The MS or multiple sclerosis refers to a demyelinating disorder in which the insulating envelopes of the nervous tissues in the spinal cord and the brain get destructed.

This destruction disturbs the tendency of the components of the nervous system to interact, leading to an array of symptoms and signs, involving mental, physical, and on certain occasions psychiatric issues.

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avanturin [10]

Answer:

The correct answer is option E. "nucleotides can only be added to an available 3'-OH group on the transcript terminus".

Explanation:

RNA synthesis is catalyzed by an enzyme called RNA polymerase. RNA polymerase always catalyze the synthesis of new RNA from 5' to 3' because nucleotides can only be added to an available 3'-OH group on the transcript terminus. This has been confirmed in labeling experiments with γ-32P substrates which establish the presence of a triphosphate moiety in transcripts with either pppG or pppA.

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3 years ago
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I think this is correct, sorry if I’m wrong :)
4 0
3 years ago
A biologist discovered a young, four-legged animal. The animal had lungs, seemed to fertilize internally, and its outer surface
navik [9.2K]
The answer should be reptiles!

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4. Although most reptiles lay eggs, some also give birth to live young (fertilise internally)!

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6 0
3 years ago
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What relationship between both an abiotic and a biotic factor in a ecosystem?
likoan [24]

Answer:

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3 0
3 years ago
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vaieri [72.5K]

Answer:

Tundra

Explanation:

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Tundra's is a very fragile environment. The freezing cold temperatures makes it a very difficult environment to survive in the winter, and plants and animals have a hard time coping with any extra stresses and disturbances. Therefore making it the least stable out of the rest listed.

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2 years ago
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