Podcast
Questions and Answers
What are the main classes of nucleic acids?
What are the main classes of nucleic acids?
- Adenine (A) and guanine (G)
- Purines and pyrimidines
- Cytosine (C) and thymine (T)
- Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) (correct)
What is the role of RNA in living cells?
What is the role of RNA in living cells?
- It yields phosphoric acid, sugars, and a mixture of organic bases
- It constitutes the genetic material in all free-living organisms
- It plays an important role in the making of proteins (correct)
- It acts as the master blueprint for life
What are the building blocks of nucleic acids called?
What are the building blocks of nucleic acids called?
- Nucleotides (correct)
- Aromatic base
- Pentose sugar
- Phosphate group
Which nitrogen-containing bases are categorized as purines?
Which nitrogen-containing bases are categorized as purines?
What does DNA constitute?
What does DNA constitute?
What does nucleic acid consist of?
What does nucleic acid consist of?
Which bases are found in all nucleic acids?
Which bases are found in all nucleic acids?
What is the difference between the pentose sugar in DNA and RNA?
What is the difference between the pentose sugar in DNA and RNA?
What is the structure of normal DNA called?
What is the structure of normal DNA called?
What process involves breaking the hydrogen bonds in DNA, allowing the two strands to separate?
What process involves breaking the hydrogen bonds in DNA, allowing the two strands to separate?
Which class of enzymes recognize and cleave specific sequences in DNA?
Which class of enzymes recognize and cleave specific sequences in DNA?
What are the building blocks of RNA?
What are the building blocks of RNA?
What type of nucleases degrade DNA selectively from the end of the chain?
What type of nucleases degrade DNA selectively from the end of the chain?
What is the role of RNA in a cell?
What is the role of RNA in a cell?
What is the role of restriction endonucleases in DNA manipulation?
What is the role of restriction endonucleases in DNA manipulation?
What is the process called when DNA reassociates after denaturation?
What is the process called when DNA reassociates after denaturation?
DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most ______.
DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most ______.
RNA is the genetic material of certain viruses, but it is also found in all living cells, where it plays an important role in certain processes such as the making of ______.
RNA is the genetic material of certain viruses, but it is also found in all living cells, where it plays an important role in certain processes such as the making of ______.
Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose sugar, which is in turn attached to a ______ group.
Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose sugar, which is in turn attached to a ______ group.
Each nucleic acid contains four of five possible nitrogen-containing bases: adenine (A), guanine (G), cytosine (C), thymine (T), and ______ (U).
Each nucleic acid contains four of five possible nitrogen-containing bases: adenine (A), guanine (G), cytosine (C), thymine (T), and ______ (U).
A and G are categorized as ______, and C, T, and U are collectively called pyrimidines.
A and G are categorized as ______, and C, T, and U are collectively called pyrimidines.
Nucleic acids are polynucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a ______ sugar, which is in turn attached to a phosphate group.
Nucleic acids are polynucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a ______ sugar, which is in turn attached to a phosphate group.
DNA contains the bases A, C, G, and ______
DNA contains the bases A, C, G, and ______
RNA contains the bases A, C, G, and ______
RNA contains the bases A, C, G, and ______
The pentose sugar in DNA is 2′-deoxyribose and in RNA it is ______
The pentose sugar in DNA is 2′-deoxyribose and in RNA it is ______
The absence of a hydroxyl group (―OH) on the 2′ carbon of the sugar ring differentiates 2′-deoxyribose from ______
The absence of a hydroxyl group (―OH) on the 2′ carbon of the sugar ring differentiates 2′-deoxyribose from ______
The phosphate group connects successive sugar residues by bridging the 5′-hydroxyl group on one sugar to the 3′-hydroxyl group of the next sugar in the ______
The phosphate group connects successive sugar residues by bridging the 5′-hydroxyl group on one sugar to the 3′-hydroxyl group of the next sugar in the ______
The double helical structure of normal DNA takes a right-handed form called the ______
The double helical structure of normal DNA takes a right-handed form called the ______
Heating DNA in solution easily breaks the hydrogen bonds, allowing the two strands to separate—a process called ______ or melting
Heating DNA in solution easily breaks the hydrogen bonds, allowing the two strands to separate—a process called ______ or melting
Nucleases are enzymes that hydrolytically cleave the phosphodiester backbone of ______
Nucleases are enzymes that hydrolytically cleave the phosphodiester backbone of ______
RNA is a single-stranded nucleic acid polymer of the four nucleotides A, C, G, and ______
RNA is a single-stranded nucleic acid polymer of the four nucleotides A, C, G, and ______
RNA is the first intermediate in converting the information from DNA into proteins essential for the working of a ______
RNA is the first intermediate in converting the information from DNA into proteins essential for the working of a ______
