BIO T or F SECTION 2 _ Cytosine, guanine, thymine and adenine are referred to as phosphates.

DNA is in the shape of a helix.

A nucleotide is made up of a suqar, phosphate and two nitrogen bases.

Replication is performed prior to cell division.

Adenine always pairs with quanine.

Complementary base pairing matches up complementary sugars.

_The sides of the DNA molecule are made up of repeating nitroqen bases and suqars.

The letters that make up the DNA molecule code for qenes.

_ Replication results in two strands of DNA, each of which has half of the oriqinal strand.

Covalent bonds hold nitrogen bases together, forming the rings of the DNA ladder.