- 1(current)
Q. No.Sickle cell anemia is caused by:
| 1. | Chromosomal aberration | 2. | Point mutation |
| 3. | Non-disjunction event | 4. | An arthropod vector |
Subtopic: Mutations and Genetic Code |
94%
Level 1: 80%+
Hints
Which one of the following pairs of codons are correctly matched with their function or the signal for the particular amino acid?
1. GUU, GCU – Alanine
2. UAG, UGA – Stop
3. AUG, ACG – Start/methionine
4. UUA, UCA – Leucine
Subtopic: Mutations and Genetic Code |
90%
Level 1: 80%+
Hints
A mutation that adds or deletes a base pair from DNA is
(1) a frameshift mutation
(2) a nonsense mutation
(3) a missense mutation
(4) an aneuploid condition
Subtopic: Mutations and Genetic Code |
90%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Which one of the following is a wrong statement regarding mutations?
| 1. | Cancer cells commonly show chromosomal aberrations |
| 2. | UV and Gamma rays are mutagens |
| 3. | Change in a single base pair of DNA does not cause mutation |
| 4. | Deletion and insertion of base pairs cause frame-shift mutations |
Subtopic: Mutations and Genetic Code |
89%
Level 1: 80%+
AIPMT - 2012
Hints
When a mutation is limited to the substitution of one nucleotide pair for another, it is called a
1. translocation.
2. point mutation.
3. sugar-phosphate deletion.
4. base inversion.
1. translocation.
2. point mutation.
3. sugar-phosphate deletion.
4. base inversion.
Subtopic: Mutations and Genetic Code |
88%
Level 1: 80%+
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Hints
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Which of the following statements about the genetic code is incorrect?
| 1. | It is nearly universal across all known life forms. |
| 2. | It is triplet-based and read in a non-overlapping manner. |
| 3. | It is ambiguous, meaning multiple amino acids can be coded by the same codon. |
| 4. | It is degenerate, meaning multiple codons can specify the same amino acid. |
Subtopic: Mutations and Genetic Code |
81%
Level 1: 80%+
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Hints
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A mutation deleting two bases in a coding sequence will most likely result in:
| 1. | Silent mutation | 2. | Missense mutation |
| 3. | Nonsense mutation | 4. | Frameshift mutation |
Subtopic: Mutations and Genetic Code |
81%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
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