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Old 05-29-2012
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Bacteria Bacterial DNA Replication!

Gram-negative bacteria isolated from the blood of a 30-year-old male is separating rapidly on lactose containing media. DNA replication in these Bacterial cells requires synthesis of DNA 5→3 and 3→5 directions. Which of the following ensures in the process of these bacterial cells?


A) DNA polymerase γ replicates mitochondrial DNA
B) Single strand binding (SSB) stabilize DNA
C) Multiple origins of replication
D) High fidelity DNA synthesis
E) RNA polymerase recognizes a TATA box




and
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Old 05-29-2012
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I don't get the question ?
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I don't get the question ?
Look for the title
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Old 05-29-2012
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These questions are becoming more and more incomprehensible!

That being said, I'd say the answer is B. Since without SSBs DNA replication would be very slow or non-existent.
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Old 05-30-2012
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Quote:
Originally Posted by alfjof View Post
Gram-negative bacteria isolated from the blood of a 30-year-old male is separating rapidly on lactose containing media. DNA replication in these Bacterial cells requires synthesis of DNA 5→3 and 3→5 directions. Which of the following ensures in the process of these bacterial cells?


A) DNA polymerase γ replicates mitochondrial DNA
B) Single strand binding (SSB) stabilize DNA
C) Multiple origins of replication
D) High fidelity DNA synthesis
E) RNA polymerase recognizes a TATA box




and

I like this Q.... the answer is B
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Old 05-30-2012
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I'd say B as well.

A. DNA polymerase γ replicates and repairs DNA, but in humans, not prokaryotes
B. SSBs attach to the polynucleotides and prevent them from reassociating or being degraded, and are found in both prokaryotes and eukaryotes
C. This applies for eukaryotes
D. Generally considered to be 1 error/1,000 in prokaryotes, lot lower in eukaryotes
E. The TATA box is found in the promoter region in eukaryotes (and archaea), prokaryotes use TATAAT
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The Correct answer is B: SSBs attach to the polynucleotides and prevent them from reassociating or being degraded,
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I like this Q.... the answer is B
You are welcome you know that!!!!!!
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