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Q. No.Aneuploidy is a chromosomal disorder where chromosome number is not the exact copy of its haploid set of chromosomes, due to:
A.
Substitution
B.
Addition
C.
Deletion
D.
Translocation
E.
Inversion
Choose the most appropriate answer from the options given below:
1.
C and D only
2.
D and E only
3.
A and B only
4.
B and C only
Subtopic: Â Non - Disjunction & Aneuploidy |
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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: Â Co-dominance |
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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: Â Dihybrid Cross: General Consideration |
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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: Â Chromosomal Disorders |
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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: Â Monohybrid Cross: 1 |Â Monohybrid Cross: Further Understanding |Â Polygenic Inheritance & Pleiotropy |Â Co-dominance |
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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: | 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 |
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: Â Polygenic Inheritance & Pleiotropy |
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The manifestations of phenylketonuria are given below. Choose the incorrect answer from the given options:
1. Mental retardation
2. Skin rashes
3. Excessive accumulation of phenylpyruvate in blood
4. Furrowed tongue
1. Mental retardation
2. Skin rashes
3. Excessive accumulation of phenylpyruvate in blood
4. Furrowed tongue
Subtopic: Â Mendelian Disorders |
 69%
NEET - 2024
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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
1. Birds, Grasshopper, Wasp, Moth
2. Grasshopper, Birds, Moth, Wasp
3. Birds, Moth, Grasshopper, Wasp
4. Grasshopper, Moth, Birds, Wasp
Subtopic: Â Sex Determination |
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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: Â Polygenic Inheritance & Pleiotropy |
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A yellow seeded and violet flowered pea plant was crossed with a green seeded and white flowered pea plant. The progeny showed plants with four different phenotypes. The yellow seeded and violet flowered parent must be:
| 1. | Double homozygous |
| 2. | Double heterozygous |
| 3. | Homozygous for seed colour and heterozygous for flower colour. |
| 4. | Heterozygous for seed colour and homozygous for flower colour. |
Subtopic: Â Dihybrid Cross Analysis |
 63%
NEET - 2024
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