Hershey chase experiment

The final proof as DNA as genetic material came from the experiment of

• Griffith

• Hershey and chase

• Avery, Mcleod, & McCarty

• Hargovind khorana

Bacteriophages are

• Viruses

• Bacteria

• Prions

• Viroids

In Hershey Chase exp.,Protein tagging was done by-

• Radioactive Phosphorus P37

• Radioactive sulphur S 34

• radioactive sulphur 35 S

• radioactive Phosphorus 32 P

Hershey-Chase exp.confirms that-

• DNA is always formed from DNA in semiconservative manner.

• Sulphur and Protein both enter in bacterial cell progeny.

• DNA is genetic material,not protein.

• Radioactive Phosphorus was only found in surrounding.

The scientist(s) who settled the debate about whether it was proteins or DNA that was the genetic material of the cell

• Avery
• Hershey & Chase
• Watson & Crick
• Griffith

By using radioactive isotopes, Hershey and Chase were able to conclude that __ is/are the carrier(s) of genetic information.

• nucleic acid
• Proteins
• Carbohydrates
• Lipids

What is a virus that infects bacteria called?

• bacteriophage

• infectious virus

• transformation

• gene change

This scientist(s) found a "transforming principle" that changed harmless bacteria into harmful bacteria

• Mendel
• Avery
• Chargraff
• Griffith

Scientist(s) who used chemical analysis to show that the genetic material in bacteria was DNA

• Griffith
• Hershey & Chase
• Mendel
• Avery

What does DNA store?

• Nutritional information.

• Genetic information.

• Chemical reactions.

• Physical traits.