Nucleic Acids Flashcards
The two classes of nucleic acids are __ and __.
DNA and RNA
What macromolecule is used for the storage of genetic information in cells?
DNA
What are the monomers of nucleic acids?
Nucleotides
What are the three basic components of a nucleotide?
sugar
base
phosphate group
Bases found in nucleotides consist of a double or single ring of __ and __ atoms.
carbon, nitrogen
Identify the two major classes of nucleic acids.
DNA and RNA
The two purine bases in DNA are __ and __.
adenine and guanine
__ is used by the cell to store genetic information, while __ is involved in decoding this genetic information.
DNA and RNA
What four bases are found in DNA?
Guanine
Thymine
Cytosine
Adenine
The building blocks of nucleic acids are monomers called __.
nucleotides
Where are the sugar phosphate groups and the bases found in the double helix?
The sugar phosphate backbone faces the outside of the double helix while the bases pair in the middle.
The three basic components of a nucleotide are a(n) pentose __, a(n) __ group, and a(n) __.
sugar, phosphate, base
What are the major components of the bases in a nucleotide?
single or double carbon ring
nitrogen
Which of the following are pyrimidine bases found in DNA?
Thymine
Cytosine
The structure of a DNA molecule is best described as a(n):
double helix
The four bases present in DNA are __, __, __, and __. (NO abbreviations please)
Cytosine, Thymine, Guanine, Adenine
Two strands of DNA are bound together by __ bonds to form the double helix.
hydrogen
The backbone of a DNA or RNA strand is made of alternating __ and __ molecules.
sugar, phosphate
What are the three basic components of a nucleotide?
base
sugar
phosphate group
During proper base pairing in DNA, adenine pairs with __ and cytosine pairs with __. (No abbreviations please)
thymine, guanine
A DNA molecule consists of two strands coiled around each other to form a structure called a(n) __.
double helix
The sugar found in ribonucleotides of RNA is __.
ribose
What type of bond is responsible for the base pairing between two strands of DNA in the double helix?
Hydrogen
RNA contains which of the following?
- Cytosine
- Uracil
- Adenine
- Guanine
- Ribose
- Thymine
- Deoxyribose
- Cytosine
- Uracil
- Adenine
- Guanine
- Ribose
True or false: Only purines are found in DNA, and only pyrimidines are found in RNA.
False
What base pairs are found in DNA?
Adenine-thymine
Cytosine-guanine
RNA differs from DNA in that RNA contains the base __ and does not contain the base __.
uracil, thymine
What type of sugar is found in RNA molecules?
Ribose