Test 4--Sheet 13

Question 1

What are small interfering RNA’s and what do they do?

Answer 1

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Question 2

What are Micro RNA’s and what do they do?

Answer 2

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Question 3

Why is protein degradation important and how are proteins marked for destruction?

Answer 3

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Question 4

What are the two general ways in which DNA is altered?

Answer 4

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Question 5

What are the 3 ways mutations arise?

Answer 5

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Question 6

what are the four types of mutations?

Answer 6

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Question 7

What are point mutations

Answer 7

a mutations that alters a single base

–can either be substitution or one base for another or the deletions or addition of a single base.

Question 8

what are base substitutions mutations

Answer 8

–substitution of one base pair for another in DNA

Question 9

what are indels, why are they lumped together?

Answer 9

indels are misaligned base pairs

Question 10

why are indels usually more deleterious than base substitutions

Answer 10

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Question 11

what are 2 ways DNA gets damaged?

Answer 11

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Question 12

what sorts of spontaneous mutations occur during and what occur after DNA replication?

Answer 12

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Question 13

What are the two classes of mutagens?

Answer 13

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Question 14

what sorts of mutations are caused by X-rays?

Answer 14

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Question 15

What sorts of mutations are caused by sun tanning ?

Answer 15

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Question 16

what sorts of mutations are caused by cigarette smoke?

Answer 16

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Question 17

what sorts of mutations are caused by intercalating chemicals?

Answer 17

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