Which one of the following is wrongly matched?

1.	Transcription- Writing information from DNA to t-RNA
2.	Translation- Using the information in m-RNA to make protein
3.	Repressor protein- Binds to an operator to stop enzyme synthesis
4.	Operon- Structural genes, operator, and promoter

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

An alga which can be employed as food for human beings:

1. Ulothrix

2. Chlorella

3. Spirogyra

4. Polysiphonia

Which vector can clone only a small fragment of DNA?

1. Bacterial artificial chromosome

2. Yeast artificial chromosome

3. Plasmid

4. Cosmid

An example of ex-situ conservation is:

1. National park 

2. Seed bank

3. Wildlife sanctuary

4. Sacred grove