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What is the role of mRNA in gene expression?

Practice Questions

Q1
What is the role of mRNA in gene expression?
  1. To replicate DNA
  2. To transport amino acids
  3. To carry genetic information from DNA to ribosomes
  4. To form the ribosome structure

Questions & Step-by-Step Solutions

What is the role of mRNA in gene expression?
  • Step 1: DNA is located in the nucleus of a cell and contains the instructions for making proteins.
  • Step 2: When a gene is needed, the DNA is copied into a molecule called mRNA (messenger RNA).
  • Step 3: The mRNA leaves the nucleus and enters the cytoplasm, where ribosomes are located.
  • Step 4: Ribosomes read the information on the mRNA to assemble amino acids in the correct order.
  • Step 5: The sequence of amino acids forms a protein, which performs various functions in the cell.
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