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Dennis_Churaev [7]
3 years ago
8

Which of the following lists steps of mRNA production in eukaryotes in the correct order?View Available Hint(s)Which of the foll

owing lists steps of mRNA production in eukaryotes in the correct order?Transcription, 5' cap addition, addition of poly-A tail, exon splicing, passage through nuclear membraneTranscription, 5' cap addition, addition of poly-A tail, passage through nuclear membrane, exon splicingTranscription, addition of poly-A tail, 5' cap addition, exon splicing, passage through nuclear membrane5' cap addition, addition of poly-A tail, exon splicing, passage through nuclear membrane, transcription
Biology
1 answer:
Nataly [62]3 years ago
7 0

Answer:

Transcription, 5' cap addition, addition of poly-A tail, exon splicing, passage through nuclear membrane

Explanation:

After being synthesized during the transcription, mRNA (pre-mRNA) must be modified in order to be functional (mature mRNA) and exported from the nucleus for the process of translation.Modification of pre-mRNA include:

  1. 5' capping-addition of 7-methylguanosine to the 5' end which protects the pre-mRNA
  2. addition of  adenine residues to form a poly(A) tail whic is also with protective role (from ribonuclease digestion)
  3. RNA splicing-excision of introns and reconection of exons

Modified mRNA can now be transported from the nucleus into the cytoplasm.

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Answer:

Explanation:

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5 0
4 years ago
Eutrophication is caused by _______. a. an increase in nutrients b. a decrease in nutrients c. the introduction of new species o
lord [1]

Answer:

A. An increase in nutrients

Explanation:

By definition, eutrophication is excessive richness of nutrients in a lake or body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.

8 0
2 years ago
The process of lipid digestion begins even before you take your first bite of food. Just the smell of food can begin digestive j
ikadub [295]

Answer:

The given statements have been rearranged in the following order to depict the flow of events that account for lipid digestion in the human body:

  1. Mechanical digestion by chewing breaks food down.
  2. During digestion, gastric lipases break down fat into fatty acids and triglyceride molecules.
  3. Gastric lipase digests some triglycerides.
  4. The pancreas secretes gastric lipase into the small intestine, where the majority of fat digestion occurs.
  5. Lipid ­digesting enzymes from the pancreas break down the triglycerides into two free fatty acids and a monoglyceride.
  6. Lingual lipase is secreted from the pancreas and breaks down triglycerides.
  7. With the aid of pancreatic lipase, fats are further broken down into free fatty acids and monoglycerides.
  8. Products of fat digestion are packaged into micelles and transported to the enterocytes.

The process is started in the mouth. Action of the teeth physically breaks down the food and increases it surface area that allows for better access to it for the enzymes to carry out mechanical digestion. Gastric lipases are those in the stomach, most of the lipid digestion takes place in the small intestine with the help of enzymes secreted by the pancreas and the small intestine itself. After digestion, the final products are taken up by the lymphatic system.

Hope that answers the question, have a great day!

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3 years ago
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Answer: genetics and mutation generate some of the variety that natural selection acts on

Explanation:

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3 years ago
On earth clay minerals are the most common products of weathering. Samples from the moon do not contain any clay minerals. Why?
a_sh-v [17]

Answer:

Water slips between cracks in rocks on earth this is called weathering but on the moon there is no water so this cannot happen.

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