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Q. No.Heterophyllous development due to environment is an example of:-
| 1. | Developmental noise | 2. | Norm of the reaction |
| 3. | Convergence | 4. | Plasticity |
Subtopic: Development |
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The ability of a plant to form different structures in response to different environments is called plasticity. Which of the following is a classic example of this phenomenon?
| 1. | A sunflower tracking the sun (heliotropism). |
| 2. | A tendril coiling around a support (thigmotropism). |
| 3. | Heterophylly in plants like cotton and coriander. |
| 4. | The annual cycle of flowering and fruiting |
Subtopic: Development |
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Level 1: 80%+
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Due to environment, shapes of buttercup leaves differ in air to those produced in water. This is an example of
1. Totipotency
2. Plasticity
3. Differentiation
4. Dedifferentiation
1. Totipotency
2. Plasticity
3. Differentiation
4. Dedifferentiation
Subtopic: Growth | Growth Terminology | Development |
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Level 1: 80%+
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The phenomenon of heterophily:
| 1. | Is found in cotton, coriander, larkspur and buttercup |
| 2. | Is an example of platicity |
| 3. | Occurs as a result of development or in response to environment |
| 4. | All are correct |
Subtopic: Development |
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Heterophylly in cotton is an example of:
1. Pleiotropy
2. Phenotypic plasticity
3. Acclimatization
4. Somatic mutation
1. Pleiotropy
2. Phenotypic plasticity
3. Acclimatization
4. Somatic mutation
Subtopic: Development |
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How does heterophylly in buttercup demonstrate phenotypic plasticity?
| 1. | It occurs due to different genotypes in different environments. |
| 2. | It results from distinct gene mutations in different individuals. |
| 3. | The same plant develops different leaf forms in response to environmental conditions. |
| 4. | It is caused by incomplete dominance of leaf shape genes. |
Subtopic: Development |
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How does the heterophylly observed in Corriandrum sativum (coriander) demonstrate phenotypic plasticity?
| 1. | The plant always produces the same leaf shape regardless of the environment. |
| 2. | The plant produces different leaf shapes (lobed in young stage, entire in mature stage) in response to growth phases. |
| 3. | The plant changes flower colour based on soil pH. |
| 4. | The plant develops thorns when exposed to herbivores. |
Subtopic: Development |
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Which one of the following plants does not show plasticity?
1. Maize
2. Cotton
3. Coriander
4. Buttercup
1. Maize
2. Cotton
3. Coriander
4. Buttercup
Subtopic: Development |
85%
Level 1: 80%+
NEET - 2022
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