6.3b Kahoot - exam

Question 1

best description of a point mutation

Answer 1

a mutation that affects a single nucleotide in a DNA sequence

Question 2

an example of a frameshift mutation

Answer 2

deletion of a nucleotide from a DNA sequence

Question 3

best description of a chromosomal mutation

Answer 3

a mutation that affects the # or structure of chromosomes

Question 4

example of a chromosomal mutation

Answer 4

duplication of a segment of DNA

Question 5

induced mutations are caused by random errors in replication

Answer 5

false

Question 6

would cigarettes likely cause a spontaneous or induced mutation

Answer 6

induced mutation

Question 7

how do spontaneous mutation impact an organism….

Answer 7

occur naturally without any apparent causes

Question 8

how do spontaneous mutations make an impact

Answer 8

random change in the dna

Question 9

induced mutations

Answer 9

• higher rate than spontaneous mutations
• mutagens – chemical or physical agents that alter DNA
• caused by environmental agents

Question 10

how do induced mutations impact an organism

Answer 10

cause physiological changes inside the cell due to a mutagen

Question 11

spontaneous mutations are caused by random errors in DNA replication

Answer 11

true

Question 12

causes of an induced mutation

Answer 12

• tobacco
• x-rays
• uv exposure

Question 13

example of physical mutagens

Answer 13

• radiation
• xrays
• uv lights

Question 14

tobacco smoke is an example of a physical mutagen

Answer 14

false

Question 15

insertion mutation

Answer 15

a base pair is added into a DNA sequence

Question 16

a chemical mutagen causes mutations by reacting with DNA

Answer 16

true

Question 17

a mutation that does not change the function of a protein is referred to as a

Answer 17

silent mutation

Question 18

a nonsense mutation

Answer 18

results in an early stop codon

Question 19

a missense mutation results in…

Answer 19

results in an altered amino acid sequence

Question 20

a stop codon mutation will result in

Answer 20

a shorter protein

Question 21

a nonsense mutation will…

Answer 21

replace an amino acid w a stop codon

Question 22

which type of mutation changes a codon to a stop codon

Answer 22

nonsense

Question 23

which types of mutations can be called “frameshift” mutations

Answer 23

deletion and mutation

Question 24

t/f frameshift mutations can be more damaging in than a substitution mutation

Answer 24

true

Question 25

t/f the likelihood of a mutation can be increased by mutagens

Answer 25

t

Question 26

mutations always cause cancer

Answer 26

false

Question 26

what are the types of chromosomal mutations

Answer 26

deletion, duplication, translocation, inversion

Question 27

inversion chromosomal mutation

Answer 27

sections of a chromosome are reversed

Question 28

in a translocation chromosomal mutation

Answer 28

part of the chromosome breaks off and attaches to another

Question 29

deletion chromosomal mutation

Answer 29

a mutation that involves the lose of all or part of a chromosomes

Question 30

best description a duplication chromosomal mutation

Answer 30

duplication of extra fragment causes incorrect alignment

Question 31

a nonsense mutation will

Answer 31

replace an amino acid w a stop codon

Question 32

t/f chromosomal mutations include duplications and translocations

Answer 32

t