3. What observation led Hershey and Chase to the conclusion that DNA, not the protein coat, carried the genetic information needed to make new virus or phage particles?
Select one:
a. The cell membrane of the bacteria infected with a virus tagged with radioactive phosphorus exhibited radioactivity after it’s initial cell division.
b. Bacterial cells infected with viruses tagged with radioactive sulfur were radioactive, indicating viral protein entered the host cell.
c. The cell was vigorously shaken, causing the protein coats to detach from the cell membrane of the bacteria. The protein coats contain genetic information.
d. Bacterial cells infected with viruses tagged with radioactive phosphorus were radioactive, indicating viral DNA entered the host cell.
its a right? the bottom 2 questions I'm not too sure what to do there.
8.Choose the correct DNA fragments to the complementray DNA below:
DNA fragments:
1. CGATCT
2. TCACGA
3. AGCTGC
4. GGCTAA
5. ATGCTG
6. GTACCA
DNA Fragments:
Complementray DNA: AGTGCT, CCGATT,GTAGA,TACGAC
#9.If the nitrogen-based molecules present in the DNA of an animal are found to be 13.2% adenine molecules, what percentage of guanine would be present in the animal’s DNA?
Select one:
a. 13.2%
b. 26.4%
c. 73.6%
d. 36.8%
i got 26.4% for question 9. i added 13.%2+13.2%=26.4%. is this right?
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