Set: DNA Structure & Replication

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All 25 terms

TermDefinition
DNAdeoxyribonucleic acid
adeninenitrogen base complementary to thymine
thyminenitrogen base complementary to adenine
cytosinenitrogen base complementary to guanine
guaninenitrogen base complementary to cytosine
nucleotidebuilding block of nucleic acids
hydrogen bondsforce that holds the 2 strands of DNA together
double helixmolecular shape of DNA
antiparallelthe opposing directions of DNA molecules, 5' to 3'/3' to 5'
semiconservativemethod of replication that implies that each new strand of DNA is half original and half new
helicaseenzyme that unwinds & separates the two strands of a DNA molecule
primaseenzyme that adds RNA to a strand of DNA in order to begin the process of DNA replication
DNA polymerase IIIenzyme that inserts complementary DNA nucleotides following the sequence of the parent strand as a template
DNA polymerase IIenzyme that proofreads the daughter strand of replicated DNA and corrects any base pairing errors
DNA polymerase Ienzyme that removes the RNA primer and replaces it with complementary DNA nucleotides
ligaseenzyme responsible for joining strands of DNA
Okazaki fragmentsdisjointed segments of replicated DNA that are joined to form a lagging strand of DNA
5' to 3'direction in which replicated strands of DNA are formed
leading strandthe segment of "daughter" strand that is synthesized continuously in a 5' to 3' direction
lagging strandthe segment of "daughter" strand that is synthesized in disjointed pieces called Okazaki fragments in a 5' to 3' direction
replication forkthe structure formed by helicase as it 'unzips' the 2 strands of a DNA molecule
replication bubbleopen areas of the DNA double helix where replication of DNA has begun
origin of replicationpoints along a strand of DNA that signal where replication should begin
hydrogen bondsthe force of attraction that holds the strands of a DNA double helix together
uracilnitrogen base complementary to adenine in molecules of RNA
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Set Information

Terms 25
Creator Jackrmw
Created January 2, 2008
Group Was H Bio
Subjects replication, dna
Access Anyone
Edit Group: Was H Bio
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Description

Vocabulary used to describe the structure and replication of DNA.

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Most Missed Words

  1. uracil nitrogen base complementary to adenine in molecules of RNA - 39 misses
  2. hydrogen bonds force that holds the 2 strands of DNA together - 37 misses
  3. cytosine nitrogen base complementary to guanine - 37 misses
  4. replication fork the structure formed by helicase as it 'unzips' the 2 strands of a DNA molecule - 36 misses
  5. DNA polymerase III enzyme that inserts complementary DNA nucleotides following the sequence of the parent strand as a template - 36 misses
  6. semiconservative method of replication that implies that each new strand of DNA is half original and half new - 35 misses
  7. origin of replication points along a strand of DNA that signal where replication should begin - 34 misses