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Alchen [17]
3 years ago
14

13) When mRNA is "processed", what are the pieces of mRNA that are cut out and stay in the nucleus?

Biology
1 answer:
tekilochka [14]3 years ago
7 0

Answer:

Introns

Explanation:

The coding region of the gene is the part of the gene that is transcribed. However, not all of the gene makes the final mRNA. There are sequences called exons and introns in the coding region of the gene.

The pre-mRNA contains transcribed sequences of both the introns and exons. However, the introns are removed from the final mRNA by splicing. The final mRNA that is translated to the protein only contains exons. An illustration is attached to illustrate this.

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The first sign of trauma to the testicle or scrotum is most often severe pain. Pain around the testicle may also be due to infection or swelling of the epididymis ("epididymitis"). Because the epididymis has a very thin wall, it easily becomes red and swollen by infection or injury.

Explanation:

6 0
3 years ago
Which statement best explains the process of cellular respiration?"
Lelu [443]

Answer:

The answer is D.

Explanation:

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Equation:

Glucose + Oxygen → Carbon dioxide + Water

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2 years ago
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6 0
2 years ago
“blank” investigations are best for demonstrating cause-and-effect relationships. a. descriptive b.comparative c. experimental
FromTheMoon [43]

C. Experimental

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8 0
3 years ago
I need help with this (#20)
tester [92]

Answer:

a Anaphase I

b Metaphase I

c Telophase I

d Anaphase II

e Prophase I

f Telophase II

Explanation:

Prophase I begins after the DNA has been duplicated, as shown in picture e. The chromosomes are condensed, and also visible, which is apparent in picture e.

The next stage is called Metaphase I, in which the pairs of homologous chromosomes align at The the centre of the cell and the spindle fibres attach, as shown in picture b.

The pairs of chromosomes are pulled apart to opposite poles of the cell by the spindle fibres., as shown in picture a. This stage is called Anaphase I.

Then, a process called Telophase I occurs, when the cell divides into two daughter cells. One of these cells is shown in picture c.

Picture d shows the stage Anaphase II, where the spindle has attached and the chromatids are pulled to the opposite poles of the cell.

The final picture left is picture f, which shows the daughter cell at the end of meiosis II, where the nuclear envelope is reforming, as in telophase II.

8 0
3 years ago
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