Function of filiform apparatus is to:

1.	Recognize the suitable pollen at the stigma
2.	Stimulate division of generative cell
3.	Producer nectar
4.	Guide the entry of the pollen tube

Non- albuminous seed is produced in:

1. Maize

2. Castor

3. Wheat

4. Pea

Which of the following shows coiled RNA strand and capsomeres?

Which one of the following is wrongly matched?

Transformation was discovered by:

1. Meseson and Stahl

2. Hershey and Chase

3. Griffith

4. Waston and crick

Fruit colour in squash is an example of:

1. Recessive epistasis

2. Dominant epistasis

3. Complementary genes

4. Inhibitory genes

Viruses have:
1. DNA enclosed in a protein coat
2. Prokaryotic nucleus
3. Single chromosome
4. Both DNA and RNA

The first human hormone produced by recombinant DNA technology is:

1. Insulin

2. Estrogen

3. Thyroxin

4. Progesterone

An analysis of chromosomal DNA using the Southern hybridization technique does not use:

1. Electrophoresis

2. Blotting

3. Autoradiography

4. PCR

In vitro clonal propagation in plants is characterized by:

1. PCR and RAPD

2. Northern blotting

3. Electrophoresis and HPLC

4. Microscopy