Lesson 1.3 Molecles And Cells Key Terms

Question 1

Biometrics

Answer 1

The measurement and analysis of unique physical or behavioral characteristics (as fingerprint or voice patterns) especially as a means of verifying personal identity

Question 2

Deoxyribonucleic acid (DNA)

Answer 2

A double-stranded, helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell’s proteins

Question 3

Gel Electrophoresis

Answer 3

The separation of nucleic acids or proteins, on the basis of their size and electrical charge, by measuring their rate of movement through an electrical field in a gel

Question 4

Restriction Enzyme

Answer 4

A degradative enzyme that recognizes specific nucleotide sequences and cuts up DNA

Question 5

Restriction fragment length polymorphisms (RFLPs)

Answer 5

Differences in DNA sequence on homologous chromosomes that can result in different patterns of restriction fragment lengths (DNA segments resulting from treatment with restriction enzymes)

Question 6

Agarose

Answer 6

A polysaccharide obtained from seaweed that is used as the supporting medium in gel electrophoresis