Podcast
Questions and Answers
What is the basic structural unit of DNA?
What is the basic structural unit of DNA?
Which type of nucleic acid is a single-stranded structure?
Which type of nucleic acid is a single-stranded structure?
What is a gene?
What is a gene?
What is the complete genetic information of a cell called?
What is the complete genetic information of a cell called?
Signup and view all the answers
Which type of molecule is a nucleotide composed of?
Which type of molecule is a nucleotide composed of?
Signup and view all the answers
What is the role of a codon in DNA?
What is the role of a codon in DNA?
Signup and view all the answers
Which of the following nitrogenous bases are found in RNA?
Which of the following nitrogenous bases are found in RNA?
Signup and view all the answers
Which type of radiation induces the formation of thymine-thymine dimers?
Which type of radiation induces the formation of thymine-thymine dimers?
Signup and view all the answers
What is the difference between DNA and RNA in terms of sugar composition?
What is the difference between DNA and RNA in terms of sugar composition?
Signup and view all the answers
Which chemical agent converts cytosine to uracil, forming hydrogen bonds with adenine rather than guanine?
Which chemical agent converts cytosine to uracil, forming hydrogen bonds with adenine rather than guanine?
Signup and view all the answers
What type of mutation occurs when a point mutation changes a codon for an amino acid into a stop codon?
What type of mutation occurs when a point mutation changes a codon for an amino acid into a stop codon?
Signup and view all the answers
What is the term for substitution of one nucleotide for another during DNA replication?
What is the term for substitution of one nucleotide for another during DNA replication?
Signup and view all the answers
What are the two nitrogenous bases that contain 2 nitrogenous rings?
What are the two nitrogenous bases that contain 2 nitrogenous rings?
Signup and view all the answers
Which of the following is true about plasmids?
Which of the following is true about plasmids?
Signup and view all the answers
Genes are made up of single-stranded RNA structures.
Genes are made up of single-stranded RNA structures.
Signup and view all the answers
Nucleotides are composed of four types of molecules.
Nucleotides are composed of four types of molecules.
Signup and view all the answers
Ribonucleic acid (RNA) is a double-stranded structure like DNA.
Ribonucleic acid (RNA) is a double-stranded structure like DNA.
Signup and view all the answers
Plasmids are essential for the transfer of genetic information from one generation to the next.
Plasmids are essential for the transfer of genetic information from one generation to the next.
Signup and view all the answers
A codon consists of two nucleotides in DNA that act as a code for placing an amino acid in a protein molecule.
A codon consists of two nucleotides in DNA that act as a code for placing an amino acid in a protein molecule.
Signup and view all the answers
Deoxyribonucleic acid (DNA) is composed of a single strand of nucleotides.
Deoxyribonucleic acid (DNA) is composed of a single strand of nucleotides.
Signup and view all the answers
Plasmids are composed of double-stranded circular DNA molecules.
Plasmids are composed of double-stranded circular DNA molecules.
Signup and view all the answers
Sense mutation results in a new codon coding for a different amino acid.
Sense mutation results in a new codon coding for a different amino acid.
Signup and view all the answers
Non-ionizing radiations, such as UV rays, have much more energy and penetrating power than ionizing radiation.
Non-ionizing radiations, such as UV rays, have much more energy and penetrating power than ionizing radiation.
Signup and view all the answers
Induced mutations occur naturally, about one in every million to one in every billion divisions.
Induced mutations occur naturally, about one in every million to one in every billion divisions.
Signup and view all the answers
Thymine-thymine dimers complementary base pair with the nucleotides, allowing the replication of DNA strand to continue.
Thymine-thymine dimers complementary base pair with the nucleotides, allowing the replication of DNA strand to continue.
Signup and view all the answers
Transversion involves the replacement of purine with pyrimidine or pyrimidine with purine.
Transversion involves the replacement of purine with pyrimidine or pyrimidine with purine.
Signup and view all the answers
Nitrous acid converts cytosine to thymine, forming hydrogen bonds with adenine rather than guanine.
Nitrous acid converts cytosine to thymine, forming hydrogen bonds with adenine rather than guanine.
Signup and view all the answers
Mutation is a change in the amino acid sequence of a protein.
Mutation is a change in the amino acid sequence of a protein.
Signup and view all the answers
Purines contain 1 nitrogenous ring and pyrimidines contain 2 nitrogenous rings.
Purines contain 1 nitrogenous ring and pyrimidines contain 2 nitrogenous rings.
Signup and view all the answers
MRNA, rRNA, and tRNA are all types of RNA found in DNA.
MRNA, rRNA, and tRNA are all types of RNA found in DNA.
Signup and view all the answers
