KA3- RNA Splicing

Question 1

What do not all nucleotides in a gene code for?

Answer 1

An amino acid

Question 2

What are introns?

Answer 2

Non-coding regions of genes

Question 3

What are exons?

Answer 3

Coding regions of genes

Question 4

Where are introns found?

Answer 4

Between the exons

Question 5

What is the primary transcript an exact copy of?

Answer 5

The DNA, including the introns

Question 6

What to spliced exons form?

Answer 6

The mature transcript of mRNA

Question 7

What happens to introns for the mature transcript of mRNA?

Answer 7

They are cut out and removed

Question 8

What is the mature transcript of mRNA?

Answer 8

mRNA with a continuous sequence of coding nucleotides

Question 9

What is the primary transcript an exact copy of?

Answer 9

The DNA, including the introns

Question 10

Does the primary transcript have introns?

Answer 10

Yes

Question 11

Does the mature transcript have introns?

Answer 11

No

Question 12

Does the primary transcript have exons?

Answer 12

Yes

Question 13

Does the primary transcript have exons?

Answer 13

Yes

Question 14

Does the order of the exons change during splicing?

Answer 14

No

Question 15

Where does the mature transcript leaves and go to?

Answer 15

Leaves the nucleus and moved to the ribosome

Question 16

What can one gene create?

Answer 16

Many proteins

Question 17

How can one gene create many proteins?

Answer 17

As a result of alternative RNA splicing

Question 18

When does alternative RNA splicing occur?

Answer 18

Before translation, when different versions of the mature transcript can be made from the same primary transcript