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The form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape.


 

double helix

Biology - Terms -

Sites where the replication of a DNA molecule begins.


 

origins replication

Biology - Terms -

An enzyme that links together the growing chain of ribonucleotides during transcription.


 

RNA polymerase

Biology - Terms -

The new continuous complementary DNA strand synthesized along the template strand in the mandatory 5' 3' direction.


 

leading strand

Biology - Terms -

A discontinuously synthesized DNA strand that elongates in a direction away from the replication fork.


 

lagging strand

Biology - Terms -

A linking enzyme essential for DNA replication; catalyzes the covalent bonding of the 39 end of a new DNA fragment to the 59 end of a growing chain.


 

DNA ligase

Biology - Terms -

An already existing RNA chain bound to template DNA to which DNA nucleotides are added during DNA synthesis.


 

primer

Biology - Terms -

An enzyme that untwists the double helix of DNA at the replication forks.


 

helicase

Biology - Terms -

A team of enzymes that hydrolyze DNA and RNA into their component nucleotides


 

nuclease

Biology - Terms -

The cellular process that uses special enzymes to fix incorrectly paired nucleotides.


 

mismatch repair

Biology - Terms -