Submitted May 18 at 6:34pm
Question 2
1 / 1 pts
A bacteriophage infects a host cell and the genome integrates itself into the host chromosome. Sometime later, the phage is excised along with a short piece of DNA adjacent to the insertion point. Both the phage DNA and the host DNA are packaged into the same capsid. The bacteriophage then infects a new cell, delivering both phage and bacterial DNA.
Which process is being described in this scenario above?
Question 5
1 / 1 pts
Put the steps of HIV infection in order by matching the correct events with each step:
Step 1
Step 2
Step 3
Step 4
Step 5
Question 6
1 / 1 pts
________ are molecules, receptors, or surface structures necessary for attachment to a host cell.
Question 7
5 / 5 pts
Take your time on this one. I recommend writing out the table by hand in front of you & filling it out before submitting your final answer.
Once you have the completed, accurate table, please use it to study for Midterm 2!
| Enzyme | Host or viral? | Template molecule (what does the enzyme "read?") | Product of the reaction (What does the enzyme "make?") | Typical location of reaction? |
| DNA polymerase | host | DNA | DNA | nucleus |
| RNA polymerase (DNA-dependent) | host | DNA | RNA | nucleus |
| RNA-dependent RNA polymerase | viral | + ssRNA or -ssRNA | RNA | cytoplasm |
| Reverse Transcriptase | viral | + ssRNA or -ssRNA | DNA | cytoplasm |
| Ribosome | host | + ssRNA | protein | cytoplasm |
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