- 1(current)
Q. No.Identify the incorrectly matched pair:
| 1. | Pleiotropy | Sickle cells anaemia |
| 2. | Polygenic inheritance | Human skin colour |
| 3. | Multiple allelism | ABO blood group |
| 4. | Gene/point mutation | Down’s syndrome |
Subtopic: Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
61%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Assertion(A): The allele for tallness is dominant over dwarfness in plants.
Reason(R): The genotypes TT and Tt give the same phenotype.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): The genotypes TT and Tt give the same phenotype.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Monohybrid Cross: 1 |
52%
Level 3: 35%-60%
Hints
Assertion(A): The plants with two different alleles for one character are called heterozygous.
Reason(R): These alleles express contrasting traits.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): These alleles express contrasting traits.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Monohybrid Cross: 1 |
62%
Level 2: 60%+
Hints
Assertion(A): Genes are considered units of inheritance.
Reason(R): These pass down from parents to offspring without any change via gametes as per Mendel.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): These pass down from parents to offspring without any change via gametes as per Mendel.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
74%
Level 2: 60%+
Hints
Assertion(A): By looking at a tall pea plant, one can tell about its genotype.
Reason(R): Tall pea plants can either be homozygous dominant or heterozygous dominant.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Tall pea plants can either be homozygous dominant or heterozygous dominant.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Monohybrid Cross: 1 |
78%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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