Unit 1 DNA structure Flashcards
Adenine (A)
Base that pairs with thymine in DNA (and uracil in RNA)
Antiparallel
Strands in DNA running in opposite directions
Base
A component of a DNA nucleotide
Chloroplast
Organelle in which the chemical reactions of photosynthesis occur
Chromosome
Structure that contains the genetic material of an organism encoded into DNA
Cytosine ( C )
Base that pairs with guanine in DNA
Deoxyribose
Five carbon sugar that is a component of a DNA nucleotide
Deoxyribonucleic acid
The molecule that holds the genetic code in living organisms
Double helix
Three-dimentional shape of a DNA molecule
Eukaryotic
Cell with a discrete nucleus
Guanine (G)
Base that pairs with cytosine in DNA
Hydrogen bond
Weak chemical bond joining complementary base pairs in DNA
Mitochrondria
Cell organelles in which the aerobic stages of respiration occur
Nucleotide
Component of DNA consisting of a deoxyribose sugar, a phosphate group and a base
Phosphate
Component of a DNA nucleotide represented by the letter P
Plasmid
Circular loop of genetic material found in prokaryotic organisms
Plasmid
Circular loop of genetic material found in prokaryotic organisms and some yeasts