In Mendel’s experiments, the contrasting traits did not show any blending in:
1. F1 stage
2. F2 stage
3. Both F1 and F2 stages
4. The statement is false as blending was seen at all stages

Subtopic:  Monohybrid Cross: 1 |
 72%
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What could be the genotype of a garden pea plant that expresses tall trait of height?

1. TD

2. Tt

3. Td

4. tt

Subtopic:  Monohybrid Cross: 1 |
 94%
From NCERT
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A genetic cross between homozygous individuals but with different alleles for a single gene of interest is called as:
1. A reciprocal cross
2. Monohybrid cross
3. Dihybrid cross
4. Test cross

Subtopic:  Monohybrid Cross: 1 |
 62%
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A graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross is called as:
1. Forked line diagram
2. Punnett square
3. Pedigree chart
4. Idiogram

Subtopic:  Law of Segregation |
 94%
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The F2 genotypic ratio of a monohybrid cross is:
1. 1 : 1
2. 3 : 1
3. 1 : 2 : 1
3. 9 : 7

Subtopic:  Monohybrid Cross: 1 |
 82%
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In a test cross, the plant expressing the dominant phenotype is crossed with the plant:
1. Which is heterozygous dominant
2. Which is heterozygous recessive
3. Which is homozygous recessive
4. Which is homozygous dominant

Subtopic:  Monohybrid Cross: Further Understanding |
 82%
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Which of the following is not true for the Law of Dominance given by Mendel?
1. Characters are controlled by discrete units called factors.
2. Factors occur in pairs.
3. In a dissimilar pair of factors one member of the pair dominates the other.
4. The alleles show blending at the time of fertilization

Subtopic:  Monohybrid Cross: 1 |
 91%
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What is the F2 genotypic ratio in cases of incomplete dominance?
1. 1 : 1
2. 3 : 1
3. 1 : 2 : 1
4. 1 : 1

Subtopic:  Dominance Deviation from Mendel: 1 |
 92%
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Blood group antigens are:
1. Carbohydrates present in plasma
2. Carbohydrates present on the surface of RBCs
3. Plasma proteins
4. Proteins present on the surface of RBCs

Subtopic:  Dominance Deviation from Mendel: 2 |
From NCERT
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What can be the blood groups of progeny whose father and mother are of AB and O blood group respectively?
1. A and B only
2. AB only
3. All except O
4. A, B, AB and O

 

Subtopic:  Dominance Deviation from Mendel: 2 |
 73%
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