About DNA & RNA

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

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wille2511
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About DNA & RNA

Post by wille2511 » Wed Dec 05, 2007 2:10 am

Could you ccheck if they are correct:

This is matching with DNA and RNA enzymes
1.polymerase
2. helicases
3.topoisomerases
4.peptidyl transferase
5.single strand binding protein
6.aminoactyl tRNA synthase
7. ligase
8.primase


a. prohibits super-coiling of DNA molecule
b. repairs the 'nick' left in DNA
c. catalyze condensation bonding between amino acids
d. charges a tRNA with its proper amino acids
e. unwinds super-coiling of DNA molecule
f. catalyze the formation of a short RNA fragment
g. breaks H-bonds between base pairs
h. catalyzes addition of nucleotides to nucleic acid molecules

my answers

1)H
2)E
3)G
4)C
5)A
6)D
7)B
8)F


multiple choice bold ones are my answers
1a)Accuracy in the translation of mRNA into the primary structure of a protein depends on specificity in the
a)binding of ribosomes to mRNA
b)shape of the A and P sites of ribosomes
c) bonding of the anticodon to the codon
d) Attachment of the amino acids to tRNAs
e) both C and D

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MrMistery
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Post by MrMistery » Wed Dec 05, 2007 1:25 pm

helicase break base pairs if i remember correctly, creating a short portion of single stranded DNA.
2 - G
3 - E

However, I am not 100% sure. I agree with the rest.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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Ammie
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Post by Ammie » Wed Dec 05, 2007 2:34 pm

I would say 1H, 2G, 3E, 4C, 5A, 6D, 7B, 8F.
Like MrMistery

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