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PLEASE HELP!!!!!!!!!!!!!!!!!!!! DNA mRNA tRNA

Genetics as it applies to evolution, molecular biology, and medical aspects.

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PLEASE HELP!!!!!!!!!!!!!!!!!!!! DNA mRNA tRNA

Postby syrNYstudent » Sun Apr 24, 2005 8:46 pm

The Neucleotide of a DNA codon is GTA.


The mRNA codon is CAU.

The tRNA anticodon is GUA.


HOW??????????????????????????????????

Please explain.don't just look if you know......[/b]
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Postby biostudent84 » Sun Apr 24, 2005 9:00 pm

In DNA, G and C pair together. A and T pair together.

In RNA, it is the same as above, except that instead of T, U is used.

Then your DNA codon is GTA.
It makes a counterpart in mRNA. Following the pairing rules, CAU is the codon.
The CAU codon pairs up with a GUA codon of a tRNA...and GUA tRNA's always grab an Aspartic Acid to bring to the polypeptide being formed.

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Postby confuzd441 » Wed May 25, 2005 5:20 pm

its way easier than that,
as a fellow confused bio person just try to remember that U is T when your dealing with RNA not DNA remember thia and it cant go wrong!
:D
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Postby MrMistery » Wed May 25, 2005 8:36 pm

You are right, however did you ever think that it may be important why it is like that? You can not expect to know genetics if you do not understand it
"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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