- 1(current)
Q. No.Sickle cell anaemia results from:
| 1. | A chromosomal aberration |
| 2. | Non-disjunction of autosome |
| 3. | A point mutation |
| 4. | Blood transfusion reaction |
Subtopic: Â Mutation |
 94%
Level 1: 80%+
Hints
Subtopic: Â Mutation |
 92%
Level 1: 80%+
AIPMT - 2009
Hints
Which one of the following is a wrong statement regarding mutations?
| 1. | Deletion and insertion of base pairs cause frame-shift mutations |
| 2. | Cancer cells commonly show chromosomal aberrations |
| 3. | UV and Gamma rays are mutagens |
| 4. | Change in a single base pair of DNA does not cause mutation |
Subtopic: Â Mutation |
 90%
Level 1: 80%+
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Hints
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Identify the incorrect statement:
| 1. | In addition to recombination, mutation is another phenomenon that leads to variation in DNA. |
| 2. | Chromosomal aberrations are commonly observed in cancer cells. |
| 3. | A classical example of a point mutation is sickle cell anemia. |
| 4. | Non ionising radiations cannot be mutagens. |
Subtopic: Â Mutation |
 83%
Level 1: 80%+
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A mutagen causes mutation by:
| 1. | Changing amino acid sequence |
| 2. | Modifying DNA structure |
| 3. | Altering protein folding |
| 4. | Affecting RNA processing |
Subtopic: Â Mutation |
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- 1(current)
Q. No.
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