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Q. No.Read the two statements A & B given below and select the correct option :
A- Embryo sac of angiosperms is a 7 celled structure.
B – Embryo sac has three synergid cells.
1. Both A and B are correct
2. Both A and B are incorrect
3. Only A is correct
4. Only B is correct
Subtopic: Pistil: Female Gametophyte |
72%
From NCERT
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Choose the correct match with respect to ploidy level in angiosperms :
1. Synergids - Triploid (3n)
2. Antipodal cells - Triploid (3n
3. Secondary nucleus- Diploid (2n)
4. Egg cell - Diploid (2n)
Subtopic: Pistil: Female Gametophyte |
72%
From NCERT
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Which process is matched with a valid example?
| Process | Example |
| 1. seed dispersal | a stamen explodes in the wind |
| 2. fertilization | a nucleus from the pollen grain fuses with a nucleus in the ovule |
| 3. fertilization | a bee carries pollen from flower to flower |
| 4. pollination | seeds are blown from a flower onto another one by the wind |
Subtopic: Pollen - Pistil Interaction |
60%
From NCERT
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| 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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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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| 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
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NEET 2023 - Target Batch - Aryan Raj Singh
| Assertion (A): | Nocturnal flowers are pollinated by moths. |
| Reason (R): | Nocturnal flowers are highly fragrant and dull in colour |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true and (R) is not the correct explanation of (A) |
| 3. | (A) is true, (R) is false |
| 4. | (A) is false and (R) is false |
Subtopic: Pollination & Outbreeding Devices |
52%
From NCERT
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Which of the following statement(s) is/are correct about pollination?
Choose the correct answer from the options given below:
1. A only
2. B only
3. A and B and C only
4. B and D only
| A. | Wind pollinated flowers have a single ovule in each ovary |
| B. | Both wind and water pollinated flowers do not produce nectar |
| C. | Bees are the dominant biotic pollinating agents |
| D. | In geitonogamy transfer of pollen grains from anther to the stigma of another flower of different plant takes place |
1. A only
2. B only
3. A and B and C only
4. B and D only
Subtopic: Pollination & Outbreeding Devices |
90%
From NCERT
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Identify two correct characteristic features of (P) Autogamy and (Q) Allogamy from the following statements
1. Plant species usually does not depend on external agents
2. Plant species usually depends on external agents
3. Plant species normally produces progeny that are healthier and better adapted in nature
4. Plant species normally produces weaker progeny in several generations
1. P-1,3; Q-2,4
2. P-2,4; Q-1,3
3. P-1,4; Q-2,3
4. P-2,3; Q-1,4
Subtopic: Pollination & Outbreeding Devices |
80%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Match the two columns that represent plant organs (I) and parts within these organs (II).
| Column I | Column II |
| A. Carpel | (i) calyx, corolla |
| B. Perianth | (ii) Vegetative cell, generative cell |
| C. Microsporocyte | (iii) Stigma, style, ovary |
| D. Megasporocyte | (iv) Antipodal cells, polar nuclei, synergid cell |
1. A-(i); B-(iii); C-(ii); D-(iv)
2. A-(iii); B-(iv); C-(i); D-(ii)
3. A-(i); B-(iii); C-(iv); D-(ii)
4. A-(iii); B-(i); C-(ii); D-(iv)
Subtopic: Pistil: Female Gametophyte |
80%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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