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Mutations Quiz

Last updated 3 months ago

19 questions

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LS1.D

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Question 1

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Question 2

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Question 3

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Question 4

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Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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Question 11

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Question 12

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Question 13

00:20

Question 14

00:34

Question 15

01:05

Question 16

01:36

Question 17

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Question 18

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Question 19

19.

If a mutation still CREATES a protein, but its function is CHANGED, it is called a

mis-sense mutation

non-sense mutation

deletion

frame-shift mutation

When a DELETION or INSERTION of a nitrogenous base occurs as a mutation, the RESULTING change can

shift the reading frame of the genetic code, causing everything after the mutation to change.

have no effect.

invert the sequence of bases

replace a single amino acid with a new one

UNLIKE a frame-shift mutation, a base-pair SUBSTITUTION can

replace several amino acids.

cause no effect

cause a non-sense mutation.

all of the choices are correct.

Examine the diagram below.  What would happen to the amino acid sequence if the structure labeled "C" was deleted?

The amino acid sequence would be unchanged except that alanine would not be there

The amino acid alanine would be a different amino acid, but every thing else would be unchanged

The amino acid sequence would be unchanged

The amino acid sequence would be entirely different after leucine

Examine the diagram below.  What would happen to the amino acid sequence if the base "Guanine" in the structure labeled "C" was substitutedto the base "Adenine"?

The amino acid sequence would be unchanged except that alanine would not be there

The amino acid alanine would be a different amino acid, but every thing else would be unchanged

The amino acid sequence would be entirely different after leucine

Match type of DNA mutation on the left with the definition on the right.

substitution

insertion

deletion

a base is removed

one base is switched for another

a base is added

Match the effect of a mutation on the left with the definition on the right.

frameshift

silent mutation

nonsense

missense

creates a non-functioning protein, or doesn't create anything.

the genetic code shifts, resulting in a change of amino acids during translation

has no effect on the amino acid produced during translation

changes a single amino acid that will be produced during translation.

In 1986, a meltdown of a nuclear reactor in the city of Chernobyl, in Ukraine, released highly radioactive chemicals into the atmosphere. As a result, people suffered various forms of cancer because of exposure to these radioactive chemicals. Cancerous cells divide much more often than noncancerous cells and form tumors in the body.

A scientist claims that these cancers were caused by harmful mutations. He wants to make a model to support his claim.

Which statement best describes what the scientist’s model needs to represent in order to support his claim?

The radioactive chemicals burned people’s skin, which increased cell division rates in the people who developed cancer.

The radioactive chemicals caused structural changes in people’s genes, which changed how proteins functioned in cell division.

The radioactive chemicals polluted people’s food, which changed some people’s ability to digest proteins and caused cancer.

The radioactive chemicals polluted people’s drinking water, which caused cells to divide more quickly in the people’s bodies and form tumors.

Mutations always change the DNA.

True

False

Mutations always change the amino acids.

True

False

Some mutations have a more severe impact than others.

True

False

Mutations are just like sci-fi movies and can give people super powers.

True

False

What is a mutagen?

inherited mutations

environmental factors that cause mutations

cancer-causing agent

factor that immediately causes death of an organism

How do mutations happen spontaneously without any outside influence?

eating processed food like hot dogs

mistakes made during DNA replication

exposure to UV radiation

smoking cigaretters

Which of the following are types of mutagens?

viruses

DNA Replication errors

Cigarette Smoke

UV Radiation