
Unit 4: Lesson 3 - Protein Synthesis and Gene Expression
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the role of ribosomes in protein synthesis?
Back
Ribosomes are the cell organelles where protein synthesis occurs, translating mRNA into amino acid sequences.
2.
FLASHCARD QUESTION
Front
What is the start codon in mRNA?
Back
AUG, which codes for the amino acid Methionine.
3.
FLASHCARD QUESTION
Front
What is a codon?
Back
A codon is a sequence of three nucleotides in mRNA that specifies a particular amino acid.
4.
FLASHCARD QUESTION
Front
What is the function of mRNA in protein synthesis?
Back
mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where it is translated into a protein.
5.
FLASHCARD QUESTION
Front
What are amino acids?
Back
Amino acids are the building blocks of proteins, linked together in a specific sequence to form a protein.
6.
FLASHCARD QUESTION
Front
What is the significance of the stop codon?
Back
Stop codons signal the termination of protein synthesis, indicating that the ribosome should release the newly formed polypeptide.
7.
FLASHCARD QUESTION
Front
How many amino acids are coded by a sequence of 18 nucleotides?
Back
6 amino acids, as each amino acid is coded by a sequence of 3 nucleotides.
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