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3 years ago

While mRNA strands are being created a sequence is sometimes miscopied.

Biology

1 answer:

olya-2409 [2.1K]3 years ago

3 0

Answer:

a . Translation may not take place.

Explanation:

The mRNA or messenger RNA holds the Exton which is the coded section of the RNA meant to be translated to protein. When a mismatch or miscopy of the strands takes place, the section becomes unfit for translation (the section is similar to the intron which is not coded for translation), hence, translation does not take place.

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Why is the ocean so salty(where did the salt come from?)

Ann [662]

The salt in the ocean comes from the rocks on land. The rain that falls onto land caontains some kind of dissovled carbon dioxide from the air. And that causes the water to be a bit acid to carbolic acid. Also rain replenishes freshwater in rivers and streams, so they don’t taste salty. However, the water in the ocean collects all of the salt and minerals from all of the rivers that flow into it.<span>
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3 years ago

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What is the first stage of protein synthesis?

Nuetrik [128]

Answer:

Option C.

tRNA charging, in which the tRNAs bind to amino acids initiation, in which the components necessary for translation are assembled at the ribosome.

Explanation:

During the transcription phase of protein synthesis, before an amino acid can even be incorporated into a growing polypeptide, it must first be attached to a molecule called the transfer RNA (tRNA). This process is known as tRNA charging.

After this, the charged RNA can now carry the activated amino acid to the ribosome, where the protein synthesis can now take place.

The tRNA charging process is the first stage in protein synthesis

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3 years ago

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Root hair cells have a high ion concentration . explain how this is maintained and its importance

Fudgin [204]

Answer:

Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption. They also contain lots of mitochondria , which release energy from glucose during respiration in order to provide the energy needed for active transport.

Explanation:

To maintain the concentration gradient and so the constant movement of water into the root hair cell by osmosis, the root hair cell actively transports mineral salts into the cell.

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3 years ago

Which proteins can activate free nerve endings, such as itch receptors and nociceptors?

mr Goodwill [35]

Kinins, antigens, histamines, potassium ions, prostaglandins can activate free nerve endings. Thus, option A, B, C, D, E are correct.

<h3>What is nociceptors ?</h3>

A specialized receptor in some first order neurons activated through various noxious stimuli known as nociceptors.

These receptors are unencapsulated cutaneous receptors as It is located at the free nerve endings of the primary afferent neuron.

It can be seen in the skin, muscle, joints, bone, and some brain parts.

There are different types of nociceptors such as mechanical, Chemical, Thermal, mechano-thermal nociceptors and Polymodal nociceptors.

Hence, option A,B,C,D and E are correct.

Learn more about nociceptors, here:

brainly.com/question/14250862

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Your question was incomplete. The probable question was

Which proteins can activate free nerve endings, such as itch receptors and nociceptors? Select all that apply.

Select one or more:

acetylcholine

histamines

prostaglandins

kinins

glucose

potassium ions

antigens

7 0

2 years ago

What's the answer to this? <br><br>"a glacial valley that is filled with sea water."

maks197457 [2]

glacial troughs or glaciated valleys

4 0

3 years ago