Podcast
Questions and Answers
What is the significance of three consecutive nucleotides in DNA?
What is the significance of three consecutive nucleotides in DNA?
- They code for three complete proteins
- They code for one complete protein
- They code for one amino acid (correct)
- They code for three amino acids
What does a codon in DNA typically specify?
What does a codon in DNA typically specify?
- Three amino acids
- One amino acid (correct)
- A nucleotide
- A polypeptide chain
How many nucleotides form a single codon?
How many nucleotides form a single codon?
- Two
- Three (correct)
- Four
- Five
What is the basic unit of genetic code called that determines an amino acid?
What is the basic unit of genetic code called that determines an amino acid?
What happens if there is a change in a nucleotide in a codon?
What happens if there is a change in a nucleotide in a codon?
What can be the consequence of a single base change in the DNA sequence?
What can be the consequence of a single base change in the DNA sequence?
Which process can be directly affected by a change in a single DNA base?
Which process can be directly affected by a change in a single DNA base?
What is a possible result if the mRNA sequence is altered due to a DNA base change?
What is a possible result if the mRNA sequence is altered due to a DNA base change?
How might a single nucleotide mutation in the DNA affect gene expression?
How might a single nucleotide mutation in the DNA affect gene expression?
Which of the following describes a potential impact of a DNA base change?
Which of the following describes a potential impact of a DNA base change?
Study Notes
Biology Quiz: DNA and Amino Acids
- A biology quiz question asks about the significance of three consecutive nucleotides in DNA
- The possible answers relate to how these nucleotides code for amino acids or proteins
- Three consecutive nucleotides in DNA are important for encoding specific genetic information
- The correct answer is likely A: They code for one amino acid, as a sequence of three nucleotides (a codon) typically specifies one amino acid in protein synthesis
How DNA Base Changes Affect Protein Production
- A single change in a DNA base can produce a different protein by altering the amino acid sequence.
- This change in amino acid sequence can result in a protein with distinct properties or functions.
- Note that changing the DNA base does not directly affect peptide bonds, mRNA production, or mRNA transport out of the nucleus.
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Description
This quiz tests your understanding of DNA structure and function, specifically the significance of three consecutive nucleotides in DNA coding for amino acids or proteins.
