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What is the role of messenger RNA (mRNA) in gene expression?
What is the role of messenger RNA (mRNA) in gene expression?
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Practice Questions
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Q1
What is the role of messenger RNA (mRNA) in gene expression?
To replicate DNA
To carry genetic information from DNA to ribosomes
To form the structure of ribosomes
To transport amino acids
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mRNA carries genetic information from DNA to ribosomes, where proteins are synthesized.
Questions & Step-by-step Solutions
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Q
Q: What is the role of messenger RNA (mRNA) in gene expression?
Solution:
mRNA carries genetic information from DNA to ribosomes, where proteins are synthesized.
Steps: 5
Show Steps
Step 1: DNA contains the genetic information needed to make proteins.
Step 2: When a gene is needed, the DNA is copied into a molecule called messenger RNA (mRNA).
Step 3: The mRNA leaves the nucleus of the cell and travels to the ribosomes, which are the sites of protein synthesis.
Step 4: At the ribosomes, the mRNA is read in sets of three bases (codons), which correspond to specific amino acids.
Step 5: The ribosomes use the information from the mRNA to assemble amino acids in the correct order to form a protein.
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