Type complete answers to the below questions in 12 point Times New Roman Font single-spaced.

chocolatehookSecurity

Nov 30, 2013 (3 years and 8 months ago)

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Lesson 1.3: Identity
-

Molecules & Cells

Essential Questions
-

Type complete answers to the below questions in 12 point Times New Roman Font single
-
spaced.

1.


What is the structure and function of DNA?

2.


How does DNA differ from person to person?

3.



What role does DNA play in our identity?

4.


How can tools of molecular biology be used to compare the DNA of two individuals?

5.


What are restriction enzymes?

6. How do restriction enzymes cut DNA?

7.


What is gel electrophoresis and how ca
n the results of this technique be interpreted?

8.


How can the field of biometrics be used to verify and protect identity?

9. Discuss the ethical issues associated with biometrics.

Key Terms

Agarose

A polysaccharide obtained from seaweed that is use
d as the supporting medium in gel
electrophoresis.

Biometrics

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

Deoxyribonucleic acid
(D
NA)

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

Gel electrophoresis

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.

Restriction enzyme

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

Restriction fragment
length polymorphisms
(RFLPs)

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

Label the below DNA Diagram:





Phosphate

Deoxyribose Sugar

Guanine

Thymine

Create a flow chart in the box below explaining the st
eps of Electrophoresis: