Fruit colour in squash is an example of:

1. Recessive epistasis

2. Dominant epistasis

3. Complementary genes

4. Inhibitory genes

Subtopic:  Epistasis |
 63%
AIPMT - 2014
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If two persons with' AB' blood group marry and have the sufficiently large number of children, these children could be classified as 'A' blood group: 'AB' blood group: 'B' blood group in 1: 2: 1 ratio. The modern technique of protein electrophoresis reveals the presence of both' A' and 'B' type proteins in 'AB' blood group individuals. This is an example of:
1. Incomplete dominance
2. Partial dominance
3. Complete dominance
4. Codominance
Subtopic:  Dominance Deviation from Mendel: 2 |
 85%
From NCERT
AIPMT - 2013
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Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents?
1. law of dominance
2. inheritance of one gene
3. co-dominance
4. incomplete dominance
Subtopic:  Dominance Deviation from Mendel: 1 |
 71%
From NCERT
AIPMT - 2013
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If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
1. 50% 2. 25 %
3. 100% 4. no chance
Subtopic:  Mendelian Disorders: Thalassemia |
 56%
From NCERT
AIPMT - 2013
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A man whose father was colour blind marries a woman who had a colour blind mother and a normal father. What percentage of male children of this couple will be colour blind?

1. 25%

2. 0%

3. 50%

4. 75%

Subtopic:  Sex Linked Recessive Inheritance |
 62%
From NCERT
AIPMT - 2014
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A human female with Turner's syndrome:

1. has 45 chromosomes with XO

2. has one additional chromosome.

3. exhibit male character

4. is able to produce children with a normal husband.

Subtopic:  Sex Aneuploidy - Turner & Klinefelter Syndrome |
 88%
From NCERT
AIPMT - 2014
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Which of the following statements is not true of two genes that show 50% recombination frequency?

1. The genes are tightly linked.
2. The genes show independent assortment.
3. If the genes are present on the same chromosome, they undergo more than one crossing-over in every meiosis.
4. The genes may be on different chromosomes.

Subtopic:  Recombination Gene Mapping |
 58%
From NCERT
AIPMT - 2013
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The incorrect statement with regard to Haemophilia is:

1. It is a recessive disease
2. It is a dominant disease
3. A single protein involved in the clotting of blood is affected
4. it is a sex-linked disease.

Subtopic:  Mendelian Disorders: Hemophilia |
 86%
From NCERT
AIPMT - 2013
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A normal-visioned man whose father was color blind marries a woman whose father was also colorblind. They have their first child as a daughter. What are the chances that this child would be colorblind?

1. 100%

2. 0%

3. 25%

4. 50%

Subtopic:  Sex Linked Recessive Inheritance |
 62%
From NCERT
AIPMT - 2012
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F2 generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1: 2: 1. It represents a case of:

1. Co-dominance

2. Dihybrid crosses

3. Monohybrid crosses with complete dominance

4. Monohybrid crosses with incomplete dominance

Subtopic:  Monohybrid Cross: 1 |
 72%
From NCERT
AIPMT - 2012
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