Development of Endosperm

Q.

The most common type of endosperm development is

1. Cellular type

2. Cell Helobial type

3. Helobial type

4. Nuclear type

Q.

Mimosa pudica shows an example of

1. phototropism

2. chemotropism

3. geotropism

4. nastic movement

Q.

__ is the swollen basal part of carpel.

Q.

What does ovary wall changes after fertilization

Q.

Consider the images shown below. Select the option in which they are correctly identified.

1. Volvox , Chalmydomonas , Chara , Laminaria

2. Volvox , Chorella , Nephrolepis , Fucus

3. Chalmydomonas , Volvox , Chara , Laminaria

4. Porphyra , Chalmydomonas , Dictyota , Fucus

Q.

................. is the swollen basal part of carpel.

__

Q.

Regarding the assertion and reason, select the right option.

Assertion (A): Endosperm development precedes embryo development.

Reason(R): Endosperm provides assured nutrition to the developing embryo.

1. Both A and R are true and R explains A

2. Both A and R are true and R does not explain A

3. A is true and R is false

4. Both A and R are false

Q. Which of the following gametes can only come from a male parent in humans?

1. 22 + X
2. 22 + Y
3. 22 + XY
4. 22 + XX

Q.

___is the swollen basal part of the carpel.

Q.

After a flower is fertilised, which part develops into the seed?

1. Stamen

2. Anther

3. Ovary

4. Ovule

Q. Identify the wrong statement regarding post-fertilisation development.

1. The ovary wall develops into pericarp
2. The outer integument of ovule develops into tegmen
3. The primery endosperm nucleus develops into endosperm
4. The ovule develops into seed

Q. Coconut water from a tender coconut is ___.

1. innermost layers of the seed coat
2. degenerated nucellus
3. immature embryo
4. free nuclear endosperm

Q.

Perisperm differs from endosperm in:

1. Being a diploid tissue

2. Being a haploid tissue

3. Having no reserve food

4. Its formation by fusion of secondary nucleus with several sperms

Q.

Coconut water from a tender coconut is:

1. Innermost layers of the seed coat

2. Degenerated nucellus

3. Immature embryo

4. Free nuclear endosperm

Q. Which of the following gametes can only come from a male parent in humans?

1. 22 + XX
2. 22 + Y
3. 22 + XY
4. 22 + X

Q. Which of the following gametes can only come from a male parent in humans?

1. 22 + X
2. 22 + Y
3. 22 + XY
4. 22 + XX

Q. Identify the wrong statements regarding post-fertilization development.

1. The ovary wall develops into pericarp.
2. The fusion nucleus (triple nucleus) develops into endosperm.
3. The ovary develops into fruit.
4. The ovule develops into seed.
5. The outer integument of ovule develops into tegmen.