Consider the following statements regarding coconut endosperm:

1. The coconut water is free-nuclear endosperm.
2. The white kernel is cellular endosperm.
3. Free-nuclear endosperm is made up of thousands of nuclei.
4. Endosperm development occurs after embryo development is complete.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 3 and 4
• 2, 3 and 4
• 1 and 4 only

Consider the following statements regarding embryo development:

1. The zygote divides only after some endosperm is formed.
2. The early stages of embryogeny are similar in monocots and dicots.
3. The zygote gives rise to the proembryo.
4. The mature embryo stage precedes the globular stage.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 2 and 4
• 2, 3 and 4
• 1 and 3 only

Consider the following statements regarding the dicot embryo:

1. It consists of an embryonal axis and two cotyledons.
2. The epicotyl terminates with the plumule.
3. The hypocotyl terminates with the radicle.
4. The plumule is covered by a root cap.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 2 and 4
• 2, 3 and 4
• 1 and 4 only

Consider the following statements regarding the grass embryo:

1. The cotyledon is called the scutellum.
2. The scutellum is situated centrally.
3. The coleoptile encloses the shoot apex.
4. The coleorrhiza encloses the radicle and root cap.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 3 and 4
• 1, 2 and 3
• 2, 3 and 4
• 1 and 2 only

Consider the following statements regarding seeds:

1. The seed is a fertilised ovule.
2. The integuments harden to form the seed coat.
3. The micropyle disappears after fertilisation.
4. The seed coat protects the embryo.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 2 and 4
• 2, 3 and 4
• 1 and 3 only

Consider the following statements regarding perisperm:

1. It is the persistent remnant of the nucellus.
2. It is found in seeds of black pepper and beet.
3. It is a diploid tissue.
4. It is consumed completely during embryo development.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 2 and 4
• 2, 3 and 4
• 1 and 3 only

Consider the following statements regarding fruits:

1. True fruits develop only from the ovary.
2. False fruits involve the thalamus in their formation.
3. Apple and strawberry are true fruits.
4. The wall of the ovary develops into the pericarp.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 2 and 4
• 2, 3 and 4
• 1 and 3 only

Consider the following statements regarding parthenocarpy:

1. It is the development of fruit without fertilisation.
2. Banana is a natural example.
3. It produces seedless fruits.
4. It can be induced by application of growth hormones.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 3 and 4
• 2, 3 and 4
• 1, 2, 3 and 4

Consider the following statements regarding seed dormancy:

1. It is a state of inactivity of the embryo.
2. It occurs when seed water content is high (above 50%).
3. Metabolic activity of the embryo slows down.
4. It allows seeds to survive unfavourable conditions.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 3 and 4
• 2, 3 and 4
• 1 and 4 only

Consider the following statements regarding apomixis:

1. It is a form of asexual reproduction.
2. It mimics sexual reproduction.
3. It results in the formation of seeds without fertilisation.
4. It is observed in species of Asteraceae and grasses.

Which of the above statements are correct?

[Sexual-Reproduction-in-Flowering-Plants] [class-xii]

• 1, 2 and 3
• 1, 3 and 4
• 2, 3 and 4
• 1, 2, 3 and 4