Adventive embryony in citrus is due to:

 

1.	Nucellus	2.	Integuments
3.	Zygotic embryo	4.	Fertilized egg

The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which during pollination, brings genetically different types of pollen grains to stigma, is:

A typical angiosperm embryo sac at maturity is:
1. 7-nucleate and 7-celled
2. 8-nucleate and 8-celled
3. 8-nucleate and 7-celled
4. 7-nucleate and 8-celled

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

1. Central cell

2. Antipodal cells

3. Egg cell

4. Synergids

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

In angiosperms, functional megaspore develops into:
1. Pollen sac
2. Embryo sac
3. Ovule
4. Endosperm

What is common between vegetative reproduction and Apomixis?
1. Both produce progeny identical to the parent
2. Both are applicable to only dicot plants
3. Both bypass the flowering phase
4. Both occur round the year

Which one of the following statements is wrong?

What is the function of germ pores?
1. Absorption of water for seed germination
2. Initiation of pollen tube
3. Release of male gametes
4. The emergence of radicle