DNA Structure and Replication
Terms in this set (...)
A double-stranded, helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins.
nitrogenous base made of two rings (adenine and guanine)
nitrogenous bases made of one ring (thymine and cytosine)
a molecule in the backbone of DNA and RNA that links adjoining bases together
An enzyme that untwists the double helix of DNA at the replication forks.
a Y-shaped point that results when the two strands of a DNA double helix separate so that the DNA molecule can be replicated
Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule
The two strands of a DNA double helix are held together by _____ that form between pairs of nitrogenous bases. - weak bond
A nucleotide that binds to thymine (DNA) and uracil (RNA); it is a purine
A nitrogenous base found in both DNA and RNA; pairs only with cytosine.
A nitrogenous base found in DNA and RNA; pairs with guanine
A nitrogenous base that pairs with adenine. Found only in DNA.
Monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
a long chain of smaller molecules called nucleotides; DNA and RNA
two strands of nucleotides wound about each other; structure of DNA
a reference to the observation that strands on DNA double helix have their nucleotides oriented in the opposite direction to one another
base pairing rules
the rules stating that cytosine pairs with guanine and adenine pairs with thymine in DNA, and that adenine pairs with uracil in RNA
series of events in which a cell grows, copies the DNA, prepares for division, and divides to form two daughter cells
sugar used in DNA to make up the "backbone"
The chemicals that make up the rungs of the DNA ladder. A-T and C-G match.
A chemical bond that involves sharing a pair of electrons between atoms in a molecule - strong bond
The process in which DNA makes a duplicate copy of itself.
preps the new DNA for attachment
An enzyme that connects two fragments of DNA to make a single fragment
Microbiology Ch 9
DNA Structure and Replication Quiz #1
6.1 DNA and DNA Replication Review
Plant Cell Diagram
Ecological Succession- Primary Succession