DNA and Gel Electrophoresis

DNA Ligase

DNA Polymerase

Restriction Enzymes

Primase

Longer; Shorter

Shorter; Longer

negatively

positively

to make extra copies of chromosomes

to inject DNA into a clone

to cut DNA into fragments

to separate DNA fragments by size

The shape of the DNA molecule is unique to every person.

The nucleotide sequence is unique to every person.

The number of chromosomes is unique to every person.

The size of each chromosome is unique to every person.