3. Suppose an mRNA molecule in the cytoplasm had 300 nucleotides. How many amino acids would be in
the resulting protein?

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Answer:

100 AMINO ACID

EXCEPTIONAL CASE:

If STOP CODON is also present mRNA then 99 amino acids are present in protein

Explanation:

set of 3 nucleotide on mRNA = codon

1 codon = 1 amino acid

AS PER QUESTION THERE ARE

  • 300 NUCLEOTIDE
  • 100 CODON
  • 100 AMINO ACID

99 amino acids are there in the resulting protein.

Each amino acid corresponds to codons; sequences of 3 base pairs.

If you have 300 base pairs, you get 100 codons.

However, you only get 99 amino acids in the protein as the last codon is a stop codon with terminates protein synthesis.

300 base pairs=100 codons=99 amino acids.

In 1 amino acid there are 3 nucleotides.

In mRNA, three-nucleotide units called codons dictate a particular amino acid.

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