structure of DNA 1.1 Flashcards
what is the 3’ end?
deoxyribose end of DNA strand to which nucleotides can be added
what is the 5’ end?
phosphate end of DNA strand to which nucleotides cannot be added
what is adenine?
base present in DNA complementary to thymine
what is thymine?
base present in DNA complementary to adenine
what is guanine?
base present in DNA complementary to cytosine
what is cytosine?
base present in DNA complementary to guanine
what does antiparallel mean?
the relationship between two strands of DNA with their sugar- phosphate backbones running in opposite directions
what is deoxyribose sugar?
the sugar present in DNA
what is DNA?
nucleic acid present in linear and circular chromosomes
what is a double helix?
two-stranded molecule of DNA wound into a spiral
what is an eukaryote?
an advanced organism such as a plant or animal
what is a genotype?
genetic constitution of an organism determined by the sequence of bases in its DNA
what is a nucleotide?
basic unit of which nucleic acids are composed
what is a plasmid?
small ring of DNA present in prokaryotes
what is a prokaryote?
simple organism such as a bacterium