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Q. No.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 daughters | 2. | Only sons |
| 3. | Only grandchildren | 4. | 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
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
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 |
80%
From NCERT
NEET - 2016
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In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant type offspring. This indicates:
| 1. | chromosomes failed to separate during meiosis |
| 2. | the two genes are linked and present on the same chromosome |
| 3. | both of the characters are controlled by more than one gene |
| 4. | the two genes are located on two different chromosomes |
Subtopic: Linkage | Recombination Gene Mapping |
82%
From NCERT
NEET - 2016
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Match the terms in Column I with their description in Column II and choose the correct option.
| Column I | Column II | ||
| A. | Dominance | 1. | Many govern a single character |
| B. | Codominance | 2. | In a heterozygous organism, only one allele expresses itself |
| C. | Pleiotropy | 3. | In a heterozygous organism, both alleles express themselves fully |
| D. | Polygenic inheritance | 4. | A single gene influences many characters |
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 4 | 1 | 2 | 3 |
| 3. | 4 | 3 | 1 | 2 |
| 4. | 2 | 1 | 4 | 3 |
Subtopic: Polygenic Inheritance & Pleiotropy | Co-dominance |
91%
From NCERT
NEET - 2016
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Which of the following most appropriately describes haemophilia?
1. X-linked recessive gene disorder
2. Chromosomal disorder
3. Dominant gene disorder
4. Recessive gene disorder
Subtopic: Mendelian Disorders: Hemophilia |
91%
From NCERT
NEET - 2016
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Which of the following statements is not true for cancer cells in relation to mutations?
| 1. | Mutations destroy telomerase inhibitor |
| 2. | Mutations inactive the cell control |
| 3. | Mutations inhibit the production of telomerase |
| 4. | Mutations in proto–oncogenes accelerate the cell cycle |
Subtopic: Mutation |
NEET - 2016
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