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

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

1. Electrophoresis

2. Blotting

3. Autoradiography

4. PCR

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.

1. A - translation B - transcription C - Erwin Chargaff

2. A -transcription B - translation C - Francis Crick

3. A - translation B - extension C - Rosalind Franklin

4. A - transcription B - replication C - James Watson

Select the correct option: 

Which one of the following is used as a vector for cloning genes into higher organisms?

1. Baculovirus

2. Salmonella typhimurium

3. Rhizopus nigricans

4. Retrovirus

DNA or RNA segment tagged with a radioactive molecule is called:

Which one of the following pairs of nitrogenous bases of nucleic acids is wrongly matched with the category mentioned against it?

1. Thymine, Uracil - Pyrimidines
2. Uracil, Cytosine - Pyrimidines
3. Guanine, Adenine - Purines
4. Adenine, Thymine - Purines

One gene-one enzyme relationship was established for the first time in:

1. Neurosporacrassa

2. Salmonella typhimurium

3. Escherichia coli

4. Diplococcuspneumonia

One gene – one enzyme hypothesis was postulated by:

1. R. Franklin

2. Hershey and Chase

3. A. Garrod

4. Beadle and Tatum