10 Questions
What is the central dogma of gene expression?
DNA → RNA → protein
Which molecule serves as the bridge between genes and the proteins for which they code?
mRNA
What is the first step of gene expression?
Transcription
Where does translation, the synthesis of a polypeptide, take place?
Cytoplasm
What is a primary transcript in gene expression?
The initial RNA transcript from any gene prior to processing
What is the function of codons in the process of gene expression?
They specify the amino acid to be placed at a corresponding position along a polypeptide.
Which of the following statements about the genetic code is true?
All 64 triplets code for amino acids.
What is the role of the nontemplate strand during translation?
It is called the coding strand as its nucleotides are identical to the codons.
What is the role of RNA polymerase in transcription?
It links nucleotides to form an RNA strand using a DNA strand as a template.
Which statement accurately describes the function of start and stop codons in translation?
Start codons specify the amino acid methionine, while stop codons specify 'stop' signals to end translation.
Explore the central dogma of gene expression and the transcription process as the initial step in gene expression. This quiz is based on Lecture 14: From Genes to Proteins 1 by Dr. Mohamed Elhadidy, which covers the genetic material of living organisms and the synthesis of proteins.
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