In the majority of angiosperms:

1.	egg has a filiform apparatus
2.	there are numerous antipodal cells
3.	reduction division occurs in the megaspore mother cells
4.	a small central cell is present in the embryo sac

Pollination in water hyacinth and water lily is brought about by the agency of:

The ovule of an angiosperm is technically equivalent to:

1. megasporangium

2. megasporophyll

3. megaspore mother cell

4. megaspore

Taylor conducted the experiments to prove semi-conservative mode of chromosome replication on:

1. Vinca rosea

2. Vicia faba

3. Drosophila melanogaster

4. E. Coli

The mechanism that causes a gene to move from one linkage group to another is called?

1. inversion

2. duplication

3. translocation

4. crossing-over

The equivalent of a structural gene is:

A true-breeding plant is:

Which of the following rRNA acts as structural RNA as well as ribozyme in bacteria?

Stirred-tank bioreactors have been designed for?

1. purification of product

2. addition of preservatives to the product

3. availability of oxygen throughout the process

4. ensuring anaerobic conditions in the culture vessel

A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using?

1. Eco Rl

2. taq polymerase

3. polymerase lll

4. ligase