Nucleic Acids quiz #3 Flashcards
Nucleic Acids quiz #3
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Which of the following statements about nucleosomes is false? A) Nucleosomes are made of DNA and histone proteins B) Nucleosomes help package DNA into chromatin C) Nucleosomes are found in prokaryotic cells D) Nucleosomes play a role in gene regulation
C) Nucleosomes are found in prokaryotic cells Which molecules are the building blocks of DNA?
The building blocks of DNA are nucleotides. What type of biomolecule are DNA and RNA?
DNA and RNA are nucleic acids. The nucleotides forming DNA molecules consist of which three parts?
The nucleotides consist of a phosphate group, a deoxyribose sugar, and a nitrogenous base. What base does adenine pair with?
Adenine pairs with thymine in DNA and with uracil in RNA. Which statement is true about nucleic acids? A) They are composed of amino acids B) They store genetic information C) They are primarily used for energy storage D) They are not found in cells
B) They store genetic information What molecules do both DNA and RNA contain?
Both DNA and RNA contain nucleotides, which include a phosphate group, a pentose sugar, and a nitrogenous base. Phosphate and deoxyribose make up what part of DNA?
Phosphate and deoxyribose make up the sugar-phosphate backbone of DNA. What are the five monomer units of a nucleic acid?
The five monomer units are adenine, thymine, cytosine, guanine, and uracil. In what ways are DNA nucleotides distinguished from those found in RNA?
DNA nucleotides contain deoxyribose sugar and thymine, while RNA nucleotides contain ribose sugar and uracil. What is a function of the nucleolus?
The nucleolus is responsible for producing ribosomal RNA (rRNA) and assembling ribosome subunits. What are the differences between DNA nucleotides and RNA nucleotides?
DNA nucleotides contain deoxyribose sugar and thymine, while RNA nucleotides contain ribose sugar and uracil. Which macromolecule stores genetic information for an organism?
Nucleic acids, specifically DNA, store genetic information for an organism. Which of the following statements is true regarding the nucleotides in DNA? A) They contain ribose sugar B) They contain uracil C) They form a double helix D) They are not involved in genetic information storage
C) They form a double helix Which type of macromolecule stores genetic information?
Nucleic acids store genetic information. Which macromolecule stores genetic information?
DNA stores genetic information. Which part of a nucleotide molecule in DNA encodes genetic information?
The nitrogenous base encodes genetic information. What is the main function of the nucleolus?
The main function of the nucleolus is to produce ribosomal RNA (rRNA) and assemble ribosome subunits. What type of biomolecules is DNA and RNA?
DNA and RNA are nucleic acids. Both DNA and RNA are made up of sugars, phosphates, and what other component?
Both DNA and RNA are made up of sugars, phosphates, and nitrogenous bases. What type of biomolecule are RNA and DNA?
RNA and DNA are nucleic acids. How are the bases in DNA and RNA different?
DNA contains adenine, thymine, cytosine, and guanine, while RNA contains adenine, uracil, cytosine, and guanine. Which of the following refers to short segments of DNA? A) Nucleotides B) Genes C) Codons D) Exons
B) Genes DNA is made up of nucleotide bases that are identified by which set of letters?
DNA nucleotide bases are identified by the letters A, T, C, and G. Which nucleic acid is correctly paired with its function? A) DNA - protein synthesis B) RNA - genetic information storage C) DNA - genetic information storage D) RNA - energy storage
C) DNA - genetic information storage What kind of biomolecule is DNA?
DNA is a nucleic acid. What are the components of DNA and RNA?
DNA and RNA are composed of nucleotides, which include a phosphate group, a pentose sugar, and a nitrogenous base. If you needed a macromolecule that would store your genetic information, which would you choose?
You would choose DNA to store genetic information. Which base is found in DNA nucleotides but not in RNA nucleotides?
Thymine is found in DNA nucleotides but not in RNA nucleotides. Which is not one of the bases found in DNA nucleotides? A) Adenine B) Thymine C) Uracil D) Cytosine
C) Uracil What's the main difference between DNA and RNA nucleotides?
The main difference is that DNA nucleotides contain deoxyribose sugar and thymine, while RNA nucleotides contain ribose sugar and uracil. What are the monomers of DNA called?
The monomers of DNA are called nucleotides. DNA is a type of what biomolecule?
DNA is a type of nucleic acid. What are the three parts of a DNA nucleotide?
A DNA nucleotide consists of a phosphate group, a deoxyribose sugar, and a nitrogenous base. What type of biomolecule is DNA made of?
DNA is made of nucleic acids. DNA is what type of biomolecule?
DNA is a nucleic acid. How are the structures of RNA and DNA similar?
Both RNA and DNA are composed of nucleotides, which include a phosphate group, a pentose sugar, and a nitrogenous base. Which type of molecule is used by organisms to store and transmit genetic information?
Nucleic acids are used to store and transmit genetic information. Nitrogenous base pairs are held together by what type of bond?
Nitrogenous base pairs are held together by hydrogen bonds. Which type of biomolecule is DNA?
DNA is a nucleic acid.
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