What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?

1.	63	2.	84
3.	21	4.	42

An example of a seed with endosperm perisperm and caruncle is:

1. cotton

2. coffee

3. lily

4. castor

What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?

1. 16

2. 24

3. 32

4. 8

The arrangement of the nuclei in a normal embryo sac in the dicot plants is:

1. 2+4+2

2. 3+2+3

3. 2+3+3

4. 3+3+2

In a cereal grain, the single cotyledon of the embryo is represented by:

1. coleorhiza

2. scutellum

3. prophyll

4. coleoptiles

Rarely among angiosperms, the pollen grains influenced the endosperm. This is called as:

1. Meta xenia

2. nemec phenomenon

3. Xenia

4. Mesogamy

The following is the diagram of TS of Anther. Identify the parts labelled as A, B and C.

1. A-Epidermis, B-Endothecium, C-Spongenous

2. A-Endothecium, B-Connective, C-Pollengrain

3. A-Pollen grain, B-Connective, C- Endothecium

4. None of the above

 
In the given diagram, parts labeled as A, B, C, D, E and F are respectively identified as:

1. synergids, polar nuclei, central cell, antipodals, filiform apparatus and egg

2. polar nuclei, egg, antipodals, central cell, filiform apparatus and synergids

3. egg, synergids, central cell, filiform apparatus, antipodals and polar nuclei

4. central cell, polar nuclei, filiform apparatus, antipodals, synergids and egg