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Course: AQA A Level Biology 7402
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AQA A Level Biology 7402

1. Biological Molecules

0/102

2. Cell Structure

0/95

3. Exchange and Transport

0/98

4. Genetics, Variation and Interdependence

0/94

5. Energy Transfers In and Between Organisms (A Level only)

0/63

6. Organisms Respond to Changes in their Environments (A Level only)

0/93

7. Genetics, Populations, Evolution and Ecosystems (A Level only)

0/55

8. The Control of Gene Expression (A Level only)

0/72

9. Exam Guidance and Skills

0/38
Quiz

4.3.1 Genetic Mutations – Exam questions

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  • Questions count: 9
  • Passing grade: B+
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1.
A genetic mutation results in a DNA sequence that continues to synthesize the same protein, at the same rate as a nonmutated sequence. This mutation would be BEST classified as a
SAT Biology - Question 130
A
B
C
D
E
2.
Which genetic mutation occurred farthest back in time?
SAT Biology - Question 300
A
B
C
D
E
3.
A mutation in DNA results in no change to the sequence of the protein that is produced. The mutation is MOST LIKELY a
SAT Biology - Question 091
A
B
C
D
E
4.
The following change is an example of which type of mutation? Original DNA sequence: ATGGA–AGC New DNA sequence: ATTGACAGC
SAT Biology - Question 122
A
B
C
D
E
5.
According to the comparison table in this lesson, what is the Mechanism of Mutation?
According to the comparison table in this lesson, what is the Mechanism of Mutation?
Sources of genetic variation
DNA change
Random orientation
Segments exchanged
Any gamete pair
6.
Which mutation is most likely to cause a frameshift?
Substitution
Silent mutation
Deletion of three bases
Deletion of one base
7.
Which statement best describes Mutation?
A permanent change in the DNA sequence.
The three-base sequence on a tRNA that pairs with a complementary mRNA codon.
Synthesis of an RNA copy of a gene by RNA polymerase, using DNA as a template.
A non-coding sequence within a eukaryotic gene that is removed from pre-mRNA by splicing.
8.
Sickle cell anaemia comes from substituting one incorrect nucleotide, yet amino acids are still added to the chain. This is an example of a
Sickle cell anaemia comes from substituting one incorrect nucleotide, yet amino acids are still added to the chain. This is an example of a
frameshift mutation.
missense mutation.
nonsense mutation.
thymine dimer mutation.
9.
Mutation is the only mechanism that creates entirely new alleles. True or false?
False
True
False, drift creates them
True only in bacteria
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Part of 4. Genetics, Variation and Interdependence — see every lesson and quiz in this unit.
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