Podcast
Questions and Answers
Which of the following best describes a mutation?
Which of the following best describes a mutation?
- A permanent change in the DNA (correct)
- A random rearrangement of nucleotides
- A reversible alteration in the genetic code
- A temporary change in the RNA
What is the primary cause of spontaneous mutations?
What is the primary cause of spontaneous mutations?
- Genetic recombination
- Incorrect DNA repair mechanism
- Inaccurate DNA replication during cell division (correct)
- Exposure to specific chemicals or radiation
How do external influences such as chemicals or radiation cause mutations?
How do external influences such as chemicals or radiation cause mutations?
- They induce temporary alterations in RNA
- They prevent DNA replication
- They trigger genetic recombination
- They cause the DNA to break down and repair incorrectly (correct)
What is the role of the genetic code in mutations?
What is the role of the genetic code in mutations?
How does understanding DNA's role help in understanding mutations?
How does understanding DNA's role help in understanding mutations?
What do codons in the genetic code specifically encode for?
What do codons in the genetic code specifically encode for?
Which of the following correctly describes the function of codons in DNA?
Which of the following correctly describes the function of codons in DNA?
In the context of DNA mutations, what is the impact of a substitution mutation?
In the context of DNA mutations, what is the impact of a substitution mutation?
What is the consequence of an insertion mutation in DNA?
What is the consequence of an insertion mutation in DNA?
What type of mutation results in a change of one base to another?
What type of mutation results in a change of one base to another?
Which mechanism occurs during DNA replication to minimize the amount of mutation that takes place?
Which mechanism occurs during DNA replication to minimize the amount of mutation that takes place?
How does a frameshift mutation alter the gene's message?
How does a frameshift mutation alter the gene's message?
What is the result of changing an amino-acid-coding codon to a single 'stop' codon due to a mutation?
What is the result of changing an amino-acid-coding codon to a single 'stop' codon due to a mutation?
What does DNA polymerase III do during DNA replication?
What does DNA polymerase III do during DNA replication?
What occurs when extra base or base pairs are inserted into a new place in the DNA?
What occurs when extra base or base pairs are inserted into a new place in the DNA?
What is the impact of deletion mutations in DNA?
What is the impact of deletion mutations in DNA?
Which of the following correctly explains the process of mutation?
Which of the following correctly explains the process of mutation?
What is the primary cause of induced mutations?
What is the primary cause of induced mutations?
How does the genetic code contribute to the occurrence of mutations?
How does the genetic code contribute to the occurrence of mutations?
What is the impact of a frameshift mutation on the genetic message?
What is the impact of a frameshift mutation on the genetic message?
What occurs when extra base pairs are inserted into a new place in the DNA?
What occurs when extra base pairs are inserted into a new place in the DNA?
How do external influences such as chemicals or radiation cause mutations?
How do external influences such as chemicals or radiation cause mutations?
What is the impact of a frameshift mutation on a gene's message?
What is the impact of a frameshift mutation on a gene's message?
In the context of DNA mutations, what is the impact of a substitution mutation?
In the context of DNA mutations, what is the impact of a substitution mutation?
What is the role of proofreading in minimizing mutations during DNA replication?
What is the role of proofreading in minimizing mutations during DNA replication?
Which type of mutation results in the insertion of extra base pairs into DNA?
Which type of mutation results in the insertion of extra base pairs into DNA?
What occurs when an amino-acid-coding codon is changed to a single 'stop' codon due to a mutation?
What occurs when an amino-acid-coding codon is changed to a single 'stop' codon due to a mutation?
What is the consequence of a deletion mutation in DNA?
What is the consequence of a deletion mutation in DNA?
What is the primary cause of spontaneous mutations?
What is the primary cause of spontaneous mutations?
How do cells minimize the amount of mutation that takes place?
How do cells minimize the amount of mutation that takes place?
'Stop' codons signify which stage in protein production?
'Stop' codons signify which stage in protein production?
