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Q. No.Given below are two statements:
Statement I:
Cleistogamous flowers are invariably autogamous.
Statement II:
Cleistogamy is disadvantageous as there is no chance for cross pollination.
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: Pollination & Outbreeding Devices |
84%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Which part of the fruit, labelled in the given figure makes it a false fruit?
1. D-Seed
2. A-Mesocarp
3. B-Endocarp
4. C-Thalamus
Subtopic: Fruit |
86%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
What will be the ploidy of endosperm of a seed produced after crossing tetraploid female plant with tetraploid male plant?
1. Pentaploid
2. Hexaploid
3. Diploid
4. Triploid
Subtopic: Post Pollination Events |
56%
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Which of the following set represents the correct labeling of A, B, C and D with respect to the given diagram?
| 1. | A- Seed Coat, B- Cotyledon, C- Endosperm, D - Hypocotyle |
| 2. | A -Seed Coat, B- Scutellum, C- Endocarp, D - Mesocarp |
| 3. | A- Seed Coat, B- Scutellum, C- Microphyle, D - Endocarp |
| 4. | A-Pericarp, B - Coleoptile |
Subtopic: Seed |
74%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Bee-keeping helps to improve the yield of following crops Except ____________.
1. Jowar
2. Sunflower
3. Apple
4. Mustard
Subtopic: Pollination & Outbreeding Devices |
50%
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Which of the following best describes the ploidy level of a fertilized embryo sac?
1. All cells are diploid
2. All cells are triploid.
3. All cells are polyploidy
4. There are haploid, diploid, and triploid cells
1. All cells are diploid
2. All cells are triploid.
3. All cells are polyploidy
4. There are haploid, diploid, and triploid cells
Subtopic: Double Fertilization | Embryo |
78%
Please attempt this question first.
Hints
| Assertion (A): | Hybrids are widely used in cultivation to increase productivity and apomixes can be an important tool for maintaining hybrid nature. |
| Reason (R): | Seeds produced by apomictic plants are identical to mother plant as there is no segregation |
| 1. | Both (A) & (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) & (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true statement but (R) is false. |
| 4. | Both (A) and (R) are false statements. |
Subtopic: Apomixis & Polyembryony |
75%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
The generative cell of male angiosperm gametophytes is haploid. This cell divides to produce two haploid sperm cells. What type of cell division does the generative cell undergo to produce these sperm cells?
1. binary fission
2. mitosis
3. meiosis
4. mitosis without subsequent cytokinesis
1. binary fission
2. mitosis
3. meiosis
4. mitosis without subsequent cytokinesis
Subtopic: Stamen: Microsporangium | Stamen: Male Gametophyte |
73%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Match the following and choose correct option
Option
1. A-1,B-ii, C-iii, D-iv
2. A-ii, B-I, C-iv, D-iii
3. A-iv, B-ii, C-I, D-iii
4. A-ii, B-iv, C-I, D-iii
| Group-A | Group-B |
| A. Aleurone layer | i. without fertilization |
| B. Parthenocarpic fruit | ii. Nutrition |
| C. Ovule | iii. Double fertilization |
| D. Endosperm | iv. Seed |
Option
1. A-1,B-ii, C-iii, D-iv
2. A-ii, B-I, C-iv, D-iii
3. A-iv, B-ii, C-I, D-iii
4. A-ii, B-iv, C-I, D-iii
Subtopic: Endosperm |
93%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
| Assertion (A): | The megaspore mother cell divide mitotically to produce four spores. |
| Reason (R): | Megaspore mother cells are diploid and megaspore is haploid. |
| 1. | Both (A) & (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) & (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) is false but (R) is true. |
Subtopic: Pistil: Ovule | Pistil: Female Gametophyte |
62%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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