Consider the following statements about the coleoptile and coleorrhiza:

1. Coleoptile protects the plumule in monocots.
2. Coleorrhiza protects the radicle in monocots.
3. Both are undifferentiated sheaths.
4. They are found in the embryos of dicots.

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 2 only

Consider the following statements regarding the number of seeds:

1. Orchid fruits contain thousands of tiny seeds.
2. Parasitic plants like Orobanche produce very few seeds.
3. Ficus trees produce a massive biomass from tiny seeds.
4. Striga fruits contain thousands of tiny seeds.

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 about seed viability records:

1. Seeds always die within a few months.
2. Lupine seeds from the Arctic Tundra were viable after 10,000 years.
3. Date palm seeds from King Herod’s palace were viable after 2,000 years.
4. Viability is independent of storage conditions.

Which of the above statements are correct?

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

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

Consider the following statements regarding the advantages of seeds:

1. Seed formation is more dependable as it is independent of water.
2. Seeds have adaptive strategies for dispersal.
3. Hard seed coats protect the embryo.
4. Seeds generate genetic variation through sexual reproduction.

Which of the above statements are correct?

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

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

Consider the following statements about the central cell after fertilisation:

1. It contains the Primary Endosperm Nucleus (PEN).
2. It becomes the Primary Endosperm Cell (PEC).
3. It develops into the embryo.
4. It stores food reserves for the developing 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 4 only

Consider the following statements regarding the pollen tube:

1. It comes out of the pollen grain through a germ pore.
2. It grows through the hollow style only.
3. It enters the synergid through the filiform apparatus.
4. It carries male gametes to the embryo sac.

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 about the development of the zygote:

1. It starts dividing immediately after syngamy.
2. It gives rise to a proembryo.
3. It passes through globular and heart-shaped stages.
4. It eventually forms a mature embryo.

Which of the above statements are correct?

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

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

Consider the following statements regarding endosperm persistence:

1. It persists in castor and coconut seeds.
2. It is consumed in pea and bean seeds.
3. It persists in groundnut seeds.
4. It persists in cereals like wheat and maize.

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 about the scutellum:

1. It is the cotyledon of the grass embryo.
2. It is situated laterally to the embryonal axis.
3. It is attached to the lower end of the embryonal axis.
4. It protects the plumule.

Which of the above statements are correct?

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

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

Consider the following statements regarding events in the ovary:

1. Fertilisation triggers the transformation of ovules into seeds.
2. The ovary wall transforms into the pericarp.
3. The fruit develops simultaneously with the seeds.
4. The integuments of the ovule degenerate.

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