Interested to Buy Any Domain ? << Click Here >> for more details...
A principal difference between prokaryotic and eukaryotic
DNA replication is
a) completely different proteins/enzymes in eukaryotes
b) multiple origins in eukaryotes
c) no requirement for topoisomerase activity in prokaryotes
d) the absence of a nucleus in prokaryotes
- 9 Answers
- 36412 Views
- I also Faced
- E-Mail Answers
Answer Posted / eb
Actually several of these answers are correct.
A. There are differnet enzymes involved in DNA replication
in prokaryotes and eukaryotes. For example in prokaryotes
there is an additional form of polymerase I discovered by a
scientist named Klenow. Thus it is named Klenow. This
prokaryotic polymerase I derivative functions like
polymerase I in every way except it does not have the 5'-
>3' exonuclease activity.
B. is obviously correct and has already been mentioned by
someone else.
C. Kinda goes along with answer a, but here it is anyway.
In Eukaryotes Topoisomerase acts to stabalize DNA during
replication by introducing negative coils. This activity
relieves the stress of unwinding the DNA and prevents
supercoiling. In eukaryotes this enzyme is called Gyrase.
| Is This Answer Correct ? | 42 Yes | 15 No |
Post New Answer View All Answers
Hi, I am venkat. I am done with M.Sc Medical Biochemistry in the year 2007. I got rejected 3 times at US consulate, and the reason they say is why are you going agian for PG when you have already done PG, and they are not ready to get convinced only on this issue.
What is the process, by which aluminium is refined?
What is banana bond? Diborane contains how many banana bonds
Who were james watson, francis crik and maurice wilkins?
How are free energy changes related to enthalpy changes and entropy changes?
Concerning enzymatic reactions how different, are the graphic curve of the variation of the speed of a reaction as function of substrate concentration and the curve of variation of the speed of a reaction as function of temperature?
Which element has maximum catenation ability?
Name two elements, which are non-metallic in nature in 5th a group?
Name the first synthetic organic compound. Who proposed it and from which compound?
How does a random coil differ from an irregularly structured region?
What are the favourable conditions for formation of cat ions?
Garnet is the ore of which element?
The expression q=delta (e)-w is? What does it states?
Define activation energy?
According to the watson – crick model how many polynucleotide chains does a dna molecule has?
