Can someone help me transcribe and translate a strand of DNA?

Question

The code is TACCUACAAGTGGGGATC. I know that first I have to transcribe into mRNA then translate into tRNA. Can someone please write down the code after each step?

sorry about that the code is actually TACCAACAAGTGGGGATC

Answer 1

Are you sure about that U in the sequence? DNA does not contain U's, only RNA does. I'll treat the U as if it were a T, so the sequence of mRNA would be:

AUGGAUGUUCACCCCUAG

The way you do that is by knowing which bases pair up together, so A's pair up with T's and G's with C's. In mRNA, the base pair thymine (T) is not present, only uracil (U). So when transcribing, instead of a T, you'd place a U. As for tRNA, the anticodons would be just the reverse of this step, again using U's instead of T's:

UACCUCAAGUGGGGAUC

Hope that makes sense!

Answer 2

Translating DNA into mRNA is simple, replace all T's with U's. I don't know how a U got into that DNA, but for now I guess I will ignore it. Next, translating mRNA into tRNA is simple, separate into groups of threes. Which would make what you have there-

UAC CUA CAA GUG GGG AUC

Next comes the decoding, each of the groups of three(codons) codes for a specific amino acid. In your case the amino acid chain would look like this-

Tyrosine - Leucine - Glutamine - Valine - Glycine - Isoleucine

Edit:
In that case then the amino acid chain is the same except the Leucine becomes a Glutamine.

Answer 3

Ecolink is correct. You also do not need to translate to tRNA since the genetic code (dictionary of mRNA to protein) is translated from mRNA, not tRNA. Remember that translation is mRNA to protein and transcription is DNA to mRNA.

Use the following site to use mRNA to translate to protein:

http://www.mun.ca/biology/scarr/MGA2-03-28.jpg

Answer 4

You have a small problem. No strand of DNA or RNA has both T and U. DNA has CGAT. RNA has CGAU. Please modify your question and I'll be glad to answer.

Answer 5

Good eye ecolink!