Podcast
Questions and Answers
What type of mutation results in a stop codon and leads to a nonfunctional protein?
What type of mutation results in a stop codon and leads to a nonfunctional protein?
- Nonsense mutation (correct)
- Insertion mutation
- Frameshift mutation
- Missense mutation
What is the consequence of an insertion or deletion mutation in the reading frame?
What is the consequence of an insertion or deletion mutation in the reading frame?
- A stop codon is formed
- The reading frame is altered, leading to extensive missense (correct)
- The gene is not transcribed
- A single amino acid is replaced
What type of gene is responsible for committing a cell to become skeletal muscle?
What type of gene is responsible for committing a cell to become skeletal muscle?
- Master regulatory gene (correct)
- Structural gene
- Transcription factor gene
- MyoD gene
What is the role of transcription factors in development?
What is the role of transcription factors in development?
What is the result of a missense mutation?
What is the result of a missense mutation?
What is the importance of MyoD protein in cell differentiation?
What is the importance of MyoD protein in cell differentiation?
What is the role of the promoter in transcription?
What is the role of the promoter in transcription?
During elongation, how many nucleotides are unwound at a time?
During elongation, how many nucleotides are unwound at a time?
What is the function of the TATA box in transcription?
What is the function of the TATA box in transcription?
How many stages are there in the transcription of DNA into mRNA?
How many stages are there in the transcription of DNA into mRNA?
What is the rate of transcription in eukaryotes?
What is the rate of transcription in eukaryotes?
In prokaryotes, what marks the end of a transcription unit?
In prokaryotes, what marks the end of a transcription unit?
What is the function of the anticodon on a tRNA molecule?
What is the function of the anticodon on a tRNA molecule?
What is the result of a polyribosome?
What is the result of a polyribosome?
What is the role of the large subunit of the ribosome?
What is the role of the large subunit of the ribosome?
What is the effect of a silent mutation?
What is the effect of a silent mutation?
What is the structure of a tRNA molecule?
What is the structure of a tRNA molecule?
What is the result of reaching a stop codon during translation?
What is the result of reaching a stop codon during translation?
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