Biology Forums - Study Force

1. The processes labelled 1 and 2 in the diagram above represent

a.exocytosis and attachment to cholinesterase
b.exocytosis and attachment to a dendrite
c.endocytosis and attachment to an axon
d.endocytosis andd attachment to cholinesterase

The first codon in the mRNA strand is
   
a.GTC
b.GUC
c.CAG
d.CUG

HINT: Can you reason whether, mRNA is the complement of the top DNA or of the bottom DNA strand?

3. Some Amino Acids:

     1. Alanine
     2. Arginine
     3. Cysteine
     4. Glycine
     5. Isoleucine
     6. Lysine
     7. Phenylalanine
     8. Serine
     9. Threonine

The second codon in the DNA double helix is TAT. What is the amino acid coded by this triplet? Enter the number for the amino acid.

Answer:  ______


HINT: If you made an DNA codon (ATA), then you get a mRNA codon (UAU), you would use the mRNA chart to get tyrosine, but it is not even listed.
So, did we do something wrong? The question says to this triplet.  The complement of TAT is mRNA codon(AUA) which is ___.

Keep using logic as long as you can in a question before you bail out and guess.

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Thanks so much bio man :) i appreciate it

You're welcome, but for future reference, please use better topic titles.

thank you so much