- 1(current)
Q. No.Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism?
1. Transduction
2. Chromosomal aberrations
3. Genetic drift
4. Recombination
2. Chromosomal aberrations
3. Genetic drift
4. Recombination
Subtopic: Â Hardy Weinberg Law |
 74%
NEET - 2015
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A population will not exist in Hardy-Weinberg equilibrium if:
1. individuals mate selectively
2. there are no mutations
3. there is no migration
4. the population is large
1. individuals mate selectively
2. there are no mutations
3. there is no migration
4. the population is large
Subtopic: Â Hardy Weinberg Law: 1 |Â Hardy Weinberg Law: 2 |Â Hardy Weinberg Law |
 61%
From NCERT
NEET - 2015
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In a population of 1000 individuals, 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is:
| 1. | 0.4 | 2. | 0.5 |
| 3. | 0.6 | 4. | 0.7 |
Subtopic: Â Hardy Weinberg Law: 1 |Â Hardy Weinberg Law |
 74%
From NCERT
AIPMT - 2014
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The tendency of the population to remain in genetic equilibrium may be disturbed by:
1. lack of migration
2. lack of mutations
3. lack of random mating
4. random mating
Subtopic: Â Hardy Weinberg Law: 1 |Â Hardy Weinberg Law: 2 |Â Hardy Weinberg Law |
 61%
AIPMT - 2013
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Variation in gene frequencies within populations can occur by chance rather than by natural selection.
This is referred to as:
1. Genetic drift
2. Random mating
3. Genetic load
4. Genetic flow
Subtopic: Â Hardy Weinberg Law |
 85%
From NCERT
AIPMT - 2013
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Random unidirectional change in allele frequencies that occur by chance in all populations and especially in small populations is known as:-
1. Migration
2. Natural selection
3. Genetic drift
4. Mutation
1. Migration
2. Natural selection
3. Genetic drift
4. Mutation
Subtopic: Â Hardy Weinberg Law |
 80%
From NCERT
NEET - 2013
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What is true about the isolated small tribal populations?
| 1. | There is a decline in population as boys marry girls only from their own tribe |
| 2. | Hereditary diseases like colour blindness do not spread in isolated populations |
| 3. | Wrestlers who develop strong body muscles in their lifetime pass this character on to their progeny |
| 4. | There is no change in population size as they have a large gene pool |
Subtopic: Â Population Genetics |Â Hardy Weinberg Law: 1 |Â Hardy Weinberg Law |
AIPMT - 2008
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- 1(current)
Q. No.
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