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Y_Kistochka [10]
3 years ago
9

If there are 20 different amino acids, how do they know how to line up? Which order should they be in? Which molecule helps them

do this?
A. Messanger RNA(mRNA)
B. Enzymes
C. Transfer RNA(tRNA)
D. Helper RNA(hRNA)
Biology
2 answers:
borishaifa [10]3 years ago
8 0

Answer:

The correct answer is: A) Messenger RNA(mRNA).

Explanation:

Proteins are macromolecules of great importance that are made of amino acids. There are 20 types of amino acids and each protein has its specific amino acid sequence.

For the protein to be synthesized correctly with all of its correct amino acids in the correct order, there is a molecule that serves as a guide: the mRNA.

<u>mRNA is a single-strand-molecule that is composed of a sequence of nucleotides</u>. A codon forms from every three nucleotides (for example: AGA, or GCU), and <u>each codon codifies for an amino acid</u>. This way, the mRNA provides the right amino acids for a protein to be created and be functional to the cell.

kari74 [83]3 years ago
6 0
A. Messenger RNA (mRNA) is the molecule that tells the amino acids which way they should be in. because they are the copy of the 'blueprints' in DNA
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