Q. No.In a multicarpellary syncarpous ovary:
| 1. | There is more than one pistil that is fused with the other |
| 2. | There is more than one pistil that is free from each other |
| 3. | There is one pistil that is fused with the stamen |
| 4. | There is more than one pistil that is fused with the stamen |
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The correct description of the structure shown in the figure would be:
| 1. | Anatropous ovule; 1 – Nucellus; 2 – Chalaza; 3 – Raphe; 4 – Funiculus |
| 2. | Orthotropous ovule; 1 – Nucellus; 2 – Micropyle; 3 – Raphe; 4 – Funiculus |
| 3. | Anatropous ovule; 1 – Nucellus; 2 – Chalaza; 3 – Funiculus; 4 – Raphe |
| 4. | Anatropous ovule; 1 – Nucellus; 2 – Micropyle; 3 – Raphe; 4 – Funiculus |
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Starting from the innermost part, the correct sequence of parts in an ovule are:
| 1. | egg, nucellus, embryo sac, integument |
| 2. | egg, embryo sac, nucellus, integument |
| 3. | embryo sac, nucellus, integument, egg |
| 4. | egg, integument, embryo sac, nucellus |
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An anatropous ovule attaches to the placenta by means of:
| 1. | Funicle | 2. | Raphe |
| 3. | Hilum | 4. | Integuments |
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Consider the following two statements regarding the integuments of an ovule:
| I: | Angiosperms are generally bitegmic and gymnosperms unitegmic |
| II: | The integuments develop into the seed coat when the ovule matures after fertilization. |
Of the two statements:
1. Both I and II are true
2. Both I and II are false
3. Only I is true
4. Only II is true
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| Statement I: | A is the Chalazal end. |
| Statement II: | B is the microspore mother cell, C is the microspore dyad and D is the microspore tetrad. |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
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| Statement I: | It shows the two, four, and eighth nucleate stages of the embryo sac. |
| Statement II: | The divisions are mitotic and free nuclear. |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
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| Statement I: | It represents mature embryosac or the female gametophyte in an angiosperm. |
| Statement II: | A is the micropylar end and B is the Chalazal end |
| Statement III: | C guides the entry of the pollen tube into the embryo sac. |
| Statement IV: | D is the polar nuclei and E is the central cell. |
| Statement V: | F is the egg cell. |
| Statement VI: | G is the antipodals and H is special cellular thickenings. |
The correct statements are:
| 1. | Statement I, Statement IV, and Statement VI |
| 2. | Statement II, Statement III, Statement IV and Statement VI |
| 3. | Statement I, Statement IV, and Statement V |
| 4. | All Statements are correct |
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When the embryosac develops from a single functional megaspore [the other three get generate], it is called as:
| 1. | Monosporic | 2. | Bisporic |
| 3. | Trisporic | 4. | Tetrasporic |
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From the statements given below, choose the option that is true for a typical female gametophyte of a flowering plant:
| i. | It is 8-nucleate and 7-celled at maturity |
| ii. | It is free-nuclear during the development |
| iii. | It is situated inside the integument but outside the nucellus |
| iv. | It has an egg apparatus situated at the chalazal end |
| 1. | i and iv | 2. | ii and iii |
| 3. | i and ii | 4. | ii and iv |
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