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salax0 salax0
wrote...
Posts: 21
Rep: 1 0
7 years ago
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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bio_manbio_man
wrote...
Educator
Top Poster
Posts: 30343
7 years ago
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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

B
Post Merge: A month ago

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?

It's usually AUG, which is D.
Post Merge: A month ago

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:  ______

TAT Rightwards Arrow AUA Rightwards Arrow Isoleucine
This verified answer contains over 340 words.
1

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wrote...
7 years ago
Thanks so much bio man Slight Smile i appreciate it
wrote...
Educator
7 years ago
You're welcome, but for future reference, please use better topic titles.
wrote...
A month ago
thank you so much
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