Which of the following pairs is wrongly matched?
1. Starch synthesis in pea: Multiple alleles
2. ABO blood grouping: Co-dominance
3. XO type sex determination: Grasshopper
4. T.H Morgan: Linkage

Subtopic:  Dominance Deviation from Mendel: 1 |
 74%
From NCERT
NEET - 2018
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A disease caused by an autosomal primary non-disjunction is:

1. Klinefelter's Syndrome

2. Turner's Syndrome

3. Sickle Cell Anemia

4. Down's Syndrome

Subtopic:  Non - Disjunction & Aneuploidy |
 67%
NEET - 2017
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A true-breeding plant is:

1. one that is able to breed on its own
2. produced due to cross-pollination among unrelated plants
3. near homozygous and produces offspring of its own kind
4. always homozygous recessive in its genetic constitution

Subtopic:  Monohybrid Cross: 1 |
 69%
From NCERT
NEET - 2016
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Among the following characters, which one was not considered by Mendel in his experiments on pea?

1. Trichomes-Gladular or non-gladular

2. Seed-green or yellow

3. Pod-inflated or constricted

4. Stem-Tall or Dwarf

Subtopic:  Introduction to Genetics: 2 |
 93%
From NCERT
NEET - 2017
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Which of the following characteristics represent the 'Inheritance of blood groups' in humans? 

a. Dominance

b. Co-dominance

c. Multiple allelism

d. Incomplete dominance

e. Polygenic inheritance

1.  b, c, and e 2.  a, b and c
3.  b, d, and e 4.  a, c, and e
Subtopic:  Co-dominance |
 59%
From NCERT
NEET - 2018
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A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by:

1.Only daughters2.Only sons
3.Only grandchildren4.Both sons and daughters

Subtopic:  Sex Linked Inheritance: Introduction |
 68%
From NCERT
NEET - 2018
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If a colourblind man marries a woman who is homozygous for normal colour vision, the probability of their son being colourblind is:

1. 0

2. 0.5

3. 0. 75

4. 1

Subtopic:  Mendelian Disorders |
 81%
NEET - 2016
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Which one from those given below is the period for Mendel's hybridization experiments?

1. 1840-1850 2. 1857-1869
3. 1870-1877 4. 1856-1863

Subtopic:  Introduction to Genetics: 1 |
 87%
From NCERT
NEET - 2017
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A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F1 plants were selfed, the resulting genotypes were in the ratio of:
1. 1:2:1 :: Tall heterozygous : Tall homozygous : Drawf
2. 3:1 :: Tall : Dwarf
3. 3:1:: Dwarf : Tall
4. 1:2:1:: Tall homozygous : Tall heterozygous : Dwarf
Subtopic:  Monohybrid Cross: 1 |
 76%
From NCERT
NEET - 2016
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Pick out the correct statements:
I:  Haemophilia is a sex-linked recessive disease. 
II:  Down’s syndrome is due to aneuploidy. 
III:  Phenylketonuria is an autosomal recessive gene disorder. 
IV:  Sickle cell anaemia is an X-linked recessive gene disorder
1. II and IV are correct
2. I, III and IV are correct
3. I, II and III are correct
4. I and IV are correct
Subtopic:  Mendelian Disorders: Sickle Cell Anemia | Mendelian Disorders | Mendelian Disorders: Hemophilia | Non - Disjunction & Aneuploidy |
 79%
From NCERT
NEET - 2016
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