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What three components make up a nucleotide?
sugar, phosphate, nitrogenous base
What would the complementary sequence be for this strand of DNA: ATCCG
TAGGC
What would the complementary DNA sequence be for this sequence: TGCA
ACGT
What did Hershey and Chase conclude from their experiment with bacteriophages?
DNA is the genetic material
What did Watson and Crick figure out about DNA?
DNA is a double helix
What type of bond connects one nucleotide to another in a single strand?
covalent bonds
What type of bonds connects nitrogenous bases and holds double stranded DNA together?
hydrogen bonds
The phosphate attaches to which carbon on the deoxyribose sugar molecule?
5'
DNA strands run in opposite directions, so they are ___
antiparallel
During which stage of the cell cycle is DNA copied?
interphase
each new cell receives one old strand of DNA and one new strand, so DNA replication is
semiconservative
which strand of DNA is made in one continuous piece?
leading strand
Repeating sequence of bases on the ends of eukaryotic chromosomes that protect the DNA are called
telomeres
Which enzyme builds the new DNA strand?
DNA polymerase
Which enzyme binds together Okazaki fragments?
ligase
Which enzyme unwinds the DNA double helix?
helicase
