Podcast
Questions and Answers
What can lead to the formation of loops in the template strand during DNA replication?
What can lead to the formation of loops in the template strand during DNA replication?
Which genetic disorder can result from the skipping over of loops by DNA polymerase during replication?
Which genetic disorder can result from the skipping over of loops by DNA polymerase during replication?
What process involves the spontaneous change from one tautomer to another, leading to non-complementary base-pairing?
What process involves the spontaneous change from one tautomer to another, leading to non-complementary base-pairing?
What is the term for the random loss of a nucleotide's purine base?
What is the term for the random loss of a nucleotide's purine base?
Signup and view all the answers
Which mutagen can add bulky carbon chains like methyls or ethyls to DNA bases?
Which mutagen can add bulky carbon chains like methyls or ethyls to DNA bases?
Signup and view all the answers
What type of radiation sensitivity can base analogs contribute to?
What type of radiation sensitivity can base analogs contribute to?
Signup and view all the answers
If cytosine loses an amino group and an oxygen is added in its place, what base does it change to?
If cytosine loses an amino group and an oxygen is added in its place, what base does it change to?
Signup and view all the answers
Which process involves the filling of an apurinic site with an adenine nucleotide?
Which process involves the filling of an apurinic site with an adenine nucleotide?
Signup and view all the answers
What is the function of enhancers in gene regulation?
What is the function of enhancers in gene regulation?
Signup and view all the answers
Which of the following actions do silencers perform in gene regulation?
Which of the following actions do silencers perform in gene regulation?
Signup and view all the answers
What effect does methylation of DNA have on transcription?
What effect does methylation of DNA have on transcription?
Signup and view all the answers
What is RNA-induced gene silencing?
What is RNA-induced gene silencing?
Signup and view all the answers
Which enzyme is responsible for cleaving double-stranded RNA during a viral infection to produce siRNA?
Which enzyme is responsible for cleaving double-stranded RNA during a viral infection to produce siRNA?
Signup and view all the answers
What is the function of microRNA in gene expression regulation?
What is the function of microRNA in gene expression regulation?
Signup and view all the answers
Which complex is responsible for RNA-induced silencing in gene regulation?
Which complex is responsible for RNA-induced silencing in gene regulation?
Signup and view all the answers
What is the role of a repressor protein in negative control?
What is the role of a repressor protein in negative control?
Signup and view all the answers
Which of the following describes the function of the allosteric domain of a repressor protein?
Which of the following describes the function of the allosteric domain of a repressor protein?
Signup and view all the answers
What is the main function of an activator protein in positive control?
What is the main function of an activator protein in positive control?
Signup and view all the answers
How do most activator proteins become active for transcription initiation?
How do most activator proteins become active for transcription initiation?
Signup and view all the answers
What factor is expressed during the heat shock response due to unstable conditions?
What factor is expressed during the heat shock response due to unstable conditions?
Signup and view all the answers
What role do chaperone proteins play in the heat shock response?
What role do chaperone proteins play in the heat shock response?
Signup and view all the answers
What are riboswitches and how do they control gene expression?
What are riboswitches and how do they control gene expression?
Signup and view all the answers
Which DNA repair mechanism involves the swapping of genetic material between homologous DNA molecules?
Which DNA repair mechanism involves the swapping of genetic material between homologous DNA molecules?
Signup and view all the answers
Which stage of meiosis does homologous recombination occur in eukaryotes?
Which stage of meiosis does homologous recombination occur in eukaryotes?
Signup and view all the answers
Which type of mutation results in the translation being stopped early due to a stop codon?
Which type of mutation results in the translation being stopped early due to a stop codon?
Signup and view all the answers
Which type of mutation results in a triplet code that still codes for the same amino acid?
Which type of mutation results in a triplet code that still codes for the same amino acid?
Signup and view all the answers
Which mechanism of DNA repair is likely to involve kinase and BRCA1?
Which mechanism of DNA repair is likely to involve kinase and BRCA1?
Signup and view all the answers
Which hypothesis suggests that mutations arise from adaptations to the environment?
Which hypothesis suggests that mutations arise from adaptations to the environment?
Signup and view all the answers
Which type of mutation involves the replacement of one pyrimidine by another?
Which type of mutation involves the replacement of one pyrimidine by another?
Signup and view all the answers
Which type of mutation involves the replacement of a pyrimidine by a purine or vice versa?
Which type of mutation involves the replacement of a pyrimidine by a purine or vice versa?
Signup and view all the answers
What type of mutation can be caused by the addition of bulky adducts?
What type of mutation can be caused by the addition of bulky adducts?
Signup and view all the answers
How do hydroxylating agents cause mutations?
How do hydroxylating agents cause mutations?
Signup and view all the answers
What type of damage can be caused by transposable DNA elements?
What type of damage can be caused by transposable DNA elements?
Signup and view all the answers
What type of radiation can produce reactive oxygen molecules that damage DNA?
What type of radiation can produce reactive oxygen molecules that damage DNA?
Signup and view all the answers
What is the role of activator proteins in transcriptional regulation?
What is the role of activator proteins in transcriptional regulation?
Signup and view all the answers
What is the role of repressor proteins in transcriptional regulation?
What is the role of repressor proteins in transcriptional regulation?
Signup and view all the answers
What is a characteristic of enhancers and silencers in eukaryotes?
What is a characteristic of enhancers and silencers in eukaryotes?
Signup and view all the answers
What is the purpose of the Ames test?
What is the purpose of the Ames test?
Signup and view all the answers
