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Q. No.Given below are two statements:
Statement I:
When many alleles of single gene govern a character, it is called polygenic inheritance.
Statement II:
In polygenic inheritance, the effect of each allele is additive
In the light of the above statements, choose the correct answer from the options given below.
1. Statement I is True but Statement II is False
2. Statement I is False but Statement II is True
3. Both Statement I and Statement II are True
4. Both Statement I and Statement II are False
Subtopic: Polygenic Inheritance & Pleiotropy |
Level 3: 35%-60%
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| List-I Types of inheritance |
List-II Example |
||
| A. | Incomplete dominance | I. | Blood groups in human |
| B. | Co-dominance | II. | Flower colour in Antirrhinum |
| C. | Pleiotropy | III. | Skin colour in human |
| D. | Polygenic inheritance | IV. | Phenylketonuria |
| 1. | A-III,B-IV, C-II, D-I | 2. | A-II, B-I, C-IV, D-III |
| 3. | A-II,B-III, C-I, D-IV | 4. | A-IV, B-I, C-III, D-II |
Subtopic: Miscellaneous |
88%
Level 1: 80%+
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Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is True but Statement II is False
2. Statement I is False but Statement II is True
3. Both Statement I and Statement II are True
4. Both Statement I and Statement II are False
| Statement I: | Failure of segregation of chromatids during cell cycle, resulting in the gain or loss of whole set of chromosome in an organism, is known as aneuploidy. |
| Statement II: | Failure of cytokinesis after anaphase stage of cell division resulting in the gain or loss of chromosome is called polyploidy. |
1. Statement I is True but Statement II is False
2. Statement I is False but Statement II is True
3. Both Statement I and Statement II are True
4. Both Statement I and Statement II are False
Subtopic: Chromosomal Disorders |
Level 3: 35%-60%
NEET - 2024
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When a tall pea plant with round seeds was selfed, it produced the progeny of:
(a) tall plants with round seeds and
(b) tall plants with wrinkled seeds
Identify the genotype of the parent plant:
1. TtRr
2. TtRR
3. TTRR
4. TTRr
(a) tall plants with round seeds and
(b) tall plants with wrinkled seeds
Identify the genotype of the parent plant:
1. TtRr
2. TtRR
3. TTRR
4. TTRr
Subtopic: Dihybrid Cross: General Consideration |
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Level 2: 60%+
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The mother has A+ blood group, the father has B+ and the child is A+. What can be possible genotypes of all three, respectively?
A. IAIA | IBi | IBi
B. IAIA | IBi | IAi
C. IB i IA IA| IA IB
D. IAIA | IBIB | IAi
E. IA | IBi | IAi
Choose the correct answer from the options given below:
1. C and D
2. D and A
3. A and B
4. B and E
A. IAIA | IBi | IBi
B. IAIA | IBi | IAi
C. IB i IA IA| IA IB
D. IAIA | IBIB | IAi
E. IA | IBi | IAi
Choose the correct answer from the options given below:
1. C and D
2. D and A
3. A and B
4. B and E
Subtopic: Co-dominance |
80%
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In animal kingdom, along with XX-YY mechanism, many other variants of chromosomal sex determination mechanisms have been described such as XX-XO mechanism, ZZ-ZW mechanism ZZ-ZO mechanism and haplo-diploidy mechanism, which are present respectively in:
| 1. | Birds, Grasshopper, Wasp, Moth |
| 2. | Grasshopper, Birds, Moth, Wasp |
| 3. | Birds, Moth, Grasshopper, Wasp |
| 4. | Grasshopper, Moth, Birds, Wasp |
Subtopic: Sex Determination |
80%
Level 1: 80%+
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The phenomenon where a single gene exhibits multiple phenotypic expressions is called:
1. Co-dominance
2. Pleiotropy
3. Multiple alleles
4. Polygenic inheritance
1. Co-dominance
2. Pleiotropy
3. Multiple alleles
4. Polygenic inheritance
Subtopic: Polygenic Inheritance & Pleiotropy |
81%
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Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | In honey bee population, sons do not have fathers but have grandfathers. |
| Reason (R): | Haploidy in drones of honey bee is due to parthenogenesis while fertilisation results into female bees. |
| 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: Sex Determination |
72%
Level 2: 60%+
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Which of the following is NOT an autosomal recessive disorder?
1. Sickle cell anemia
2. Phenylketonuria
3. Haemophilia
4. Thalassemia
1. Sickle cell anemia
2. Phenylketonuria
3. Haemophilia
4. Thalassemia
Subtopic: Mendelian Disorders | Mendelian Disorders: Hemophilia |
79%
Level 2: 60%+
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Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 456753
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Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 456753
A cross between tall plants was made resulting in offspring of tall and dwarf plants with ratio 3 : 1. The genotype(s) of both parents are:
1. TT and TT
2. Tt and tt
3. Tt and Tt
4. tt and tt
1. TT and TT
2. Tt and tt
3. Tt and Tt
4. tt and tt
Subtopic: Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
78%
Level 2: 60%+
NEET - 2024
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