Eight-nucleated embryosac is:

1. Only monosporic

2. Only bisporic

3. Only tetra sporic

4. Any of the above

Endosperm is formed during double fertilization by:

1. Two polar nuclei & one male gamete

2. One polar nucleus & one male gamete

3. Ovum and male gamete

4. Two polar nuclei & two male gametes

Hair found in the inflorescences of Zea mays is the modification of:

In Angiosperms, pollen tubes liberate their male gametes into the:

1. Central cell

2. Antipodal cells

3. Egg cell

4. Synergids

What is the direction of the micropyle in the anatropous ovule:

In Angiosperm all four microspores of a tetrad are covered by a layer that is formed by:

1. Pectocellulose

2. Callose

3. Cellulose

4. Sporopollenin

In a flowering plant, archesporium gives rise to:

1. Only the wall of the sporangium

2. Both wall and the sporogenous cells

3. Wall and the tapetum

4. Only tapetum and sporogenous cells

Anemophilly type of pollination is found in:
1.  Salvia
2.  Bottlebrush
3.  Vallisneria
4.  Coconut

In grasses what happens in microspore mother cell for the formation of mature pollen grains:
1.  One meiotic and two mitotic divisions
2.  One meiotic & one mitotic division
3.  One meiotic division
4.  One mitotic division

Adventive embryony in citrus is due to: