DNA homework help PLEASE?

The key is to find the start and stop codons. A start codon on DNA is TAC, stop codons are ATT, ACT or ATC.

You can see the start codon TAC on strand B, so that's the first part of

the section.

What you do next depends on whether the sequences you have pasted above are everything you have, or whether there is more after the "...".

If there is more, look for a stop codon on the end of strand A or C.

If there is not, you will have to put the strands in order BAC and then BCA, go through the bases in groups of three until you find a stop codon in the third strand. When you do you will know you have the strands in the correct order.

Then all you have to do is split the bases into groups of 3 and work out what amino acid each group codes for. That's your protein.

Part B is your first one because of the start codon TAC.

It sounds like you should have the answers from lessons 14-15 to answer this question. Just group the rest of the letters into 3s for codons and match these with amino acids you discovered in lessons 14-15. It appears like the sequence is missing 2 bases so discover if it is CTC or CAA as the last base in part B is "C".

Is CTC or CAA in Insulin, which ever denotes the next sequence.

interior the nucleus, DNA unzips on the backside pairs. MessengerRNA "reads" between the strands of open DNA. It copies the genetic code for a particular protein. that's referred to as transcription. mRNA then leaves the DNA and the nucleus, enters the cytoplasm and unearths a ribosomalRNA. The mRNA strikes with the aid of the rRNA and a transferRNA brings in amino acids desperate by utilising the genetic code training.that's translation. The amino acids then connect at the same time to make an prolonged protein chain. The protein then leaves is going directly to do what it is think to do.