What is another name for thymine?

1. 5 – bromouracil

2. 3 – bromouracil

3. 3 – methyl uracil

4. 5 – methyl uracil

1. Hershey and Chase

2. Marie Curie and Pierre Curie

3. Franklin and Wilkins

4. Meselson and Stahl

(1) A typical nucleus is not seen and DNA is scattered throughout the cell

(2) A typical nucleus may sometimes be present and DNA is scattered throughout a cell

(3) A typical nucleus is not seen but DNA is not scattered throughout the cell

(4) A typical nucleus may sometimes be present but DNA is not scattered throughout the cell

(1) Arginine and Lysine

(2) Argine and Leucine

(3) Arginine and Isoleucine                                

(4) Aspartate and Glutamate

1. 60 base pairs

2. 140 base pairs

3. 200 base pairs 

4. 400 base pairs

1. Are not required

2. Are required from the beginning to the end of packaging

3. Are required only for earlier stages of packaging

4. Are required for higher level of packaging

(1) DNA is the genetic material

(2) RNA can be the genetic material

(3) Sterptococcus has two strains

(4) Bacterial transformation

(1) Proteases

(2) RNase

(3) DNAs

(4) None of these

(1) Radioactive proteins but not DNA

(2) Radioactive DNA but not proteins

(3) Radioactive proteins and DNA

(4) Nonradioactive DNA and protein

(1) Bacteria that were infected with viruses that had radioactive proteins were not radioactive

(2) Bacteria that were infected with viruses that had radioactive DNA were radioactive

(3) Both 1 and 2 are correct

(4) Both 1 and 2 are incorrect