Podcast
Questions and Answers
Which type of repair is the most important in both prokaryotic and eukaryotic cells?
Which type of repair is the most important in both prokaryotic and eukaryotic cells?
- Recombinational repair
- Excision repair (correct)
- Photoreactivation
- Translesion DNA synthesis
Which type of repair is the most important in both prokaryotic and eukaryotic cells?
Which type of repair is the most important in both prokaryotic and eukaryotic cells?
- Translesion DNA synthesis
- Recombinational repair
- Excision repair (correct)
- Direct repair
Which RNA polymerase produces the majority of rRNA transcripts?
Which RNA polymerase produces the majority of rRNA transcripts?
- RNA polymerase III
- RNA polymerase II
- RNA polymerase IV
- RNA polymerase I (correct)
What are the two types of DNA mutations?
What are the two types of DNA mutations?
Which of the following can cause DNA damage?
Which of the following can cause DNA damage?
What is the function of DNA Helicase in DNA replication?
What is the function of DNA Helicase in DNA replication?
Which type of DNA recombination is limited to specific DNA sequences and involves an enzyme called a recombinase?
Which type of DNA recombination is limited to specific DNA sequences and involves an enzyme called a recombinase?
Which of the following is a consequence of mutations?
Which of the following is a consequence of mutations?
Which molecule is made of nucleotides and has directionalality?
Which molecule is made of nucleotides and has directionalality?
What can cause DNA damage?
What can cause DNA damage?
What can happen to cells in response to DNA damage?
What can happen to cells in response to DNA damage?
What type of repair is used to repair UV-induced pyrimidine dimers?
What type of repair is used to repair UV-induced pyrimidine dimers?
When does DNA replication start in the cell cycle?
When does DNA replication start in the cell cycle?
What is the most stable structure for a random-sequence DNA molecule?
What is the most stable structure for a random-sequence DNA molecule?
What can trinucleotide repeat expansion cause?
What can trinucleotide repeat expansion cause?
What is the function of miRNAs?
What is the function of miRNAs?
Which process occurs during meiosis and is a type of homologous genetic recombination?
Which process occurs during meiosis and is a type of homologous genetic recombination?
What are the three main types of point mutations?
What are the three main types of point mutations?
What is an AP site?
What is an AP site?
Which base pairs with adenine in DNA?
Which base pairs with adenine in DNA?
Which enzyme adds DNA nucleotides on the leading strand in the direction of 5' to 3'?
Which enzyme adds DNA nucleotides on the leading strand in the direction of 5' to 3'?
What are the main types of point mutations?
What are the main types of point mutations?
Which diseases can be caused by Trinucleotide repeat expansion?
Which diseases can be caused by Trinucleotide repeat expansion?
Which two pathways are used to repair double-strand breaks?
Which two pathways are used to repair double-strand breaks?
Which type of repair is seen in repairing UV-induced pyrimidine dimers?
Which type of repair is seen in repairing UV-induced pyrimidine dimers?
Which process produces mutations within rearranged variable regions of both heavy and light chains, leading to an effective immune response?
Which process produces mutations within rearranged variable regions of both heavy and light chains, leading to an effective immune response?
What is the role of snoRNAs in ribosome assembly?
What is the role of snoRNAs in ribosome assembly?
What can be associated with inherited defects in DNA repair genes?
What can be associated with inherited defects in DNA repair genes?
What can cause DNA damage?
What can cause DNA damage?
How can mutations be localized?
How can mutations be localized?
What is the difference between RNA polymerase III and RNA polymerase II?
What is the difference between RNA polymerase III and RNA polymerase II?
Which type of DNA recombination allows an organism to produce an extraordinary diversity of antibodies from a limited DNA-coding capacity?
Which type of DNA recombination allows an organism to produce an extraordinary diversity of antibodies from a limited DNA-coding capacity?
What is the function of telomerase in DNA replication?
What is the function of telomerase in DNA replication?
What can happen to cells in response to DNA damage?
What can happen to cells in response to DNA damage?
Which diseases can be caused by trinucleotide repeat expansion?
Which diseases can be caused by trinucleotide repeat expansion?
What is the diploid number of chromosomes in humans?
What is the diploid number of chromosomes in humans?
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Study Notes
- Living things reproduce and inherit genetic information from their parents.
- Genes are the carriers of genetic information and are part of DNA.
- Chromosomes are carriers of genes and are diploid in humans.
- Nucleotides are the repeating structural units of DNA and RNA.
- DNA is a macromolecule made of nucleotides and has directionalality.
- DNA has a double helical shape that helps in stability.
- Adenine binds to thymine and guanine binds to cytosine in DNA base pairing.
- A always equals T and G always equals C in DNA base pairing.
- B-form DNA is the most stable structure for a random-sequence DNA molecule.
- Z-form DNA is a left-handed coiled structure and contains 12 base pairs.
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