The genetic material in the nucleus of a cell.
DNA
Made of a sugar and a phosphate group, with one of four different bases
Nucleotide
The twisted ladder structure of DNA.
Double Helix
The units of heredity.
Gene
One copy of all an organism's DNA.
Genome
Decides the biological sex of an individual.
Chromosome Pair 23
A small section of DNA in a chromosome.
Gene
The project to sequence all base pairs, identify all genes and develop faster DNA sequencing.
The Human Genome Project
Hold together complementary base pairs.
Weak hydrogen bonds
A polymer, made of many smaller units called nucleotides.
DNA
