Biology (Holt)

CHAPTER 11Gene Technology 227

Quick Review Looking Ahead

Answer the following without referring to
earlier sections of your book.
1.Definethe term gene. (Chapter 6, Section 1)
2.Describethe structure of DNA. (Chapter 9,
Section 2)
3.Statethe base-pairing rules that determine the
structure of DNA.(Chapter 9, Section 1)
4.Explainwhy the genetic code is said to be
universal. (Chapter 10, Section 1)
Did you have difficulty? For help, review the
sections indicated.

Section 1

Genetic Engineering

Basic Steps of Genetic Engineering

Confirmation of a Cloned Gene

Section 2

Human Applications of

Genetic Engineering

The Human Genome Project

Genetically Engineered Drugs and Vaccines

DNA Fingerprinting

Section 3

Genetic Engineering

in Agriculture

Improving Crops

Risks of Genetically Modified Crops

Gene Technology in Animal Farming

Problems with Cloning

http://www.scilinks.org

National Science Teachers Association sciLINKS Internet

resources are located throughout this chapter.

Reading Activity

Before you read this chapter, write a short list of
all the things you know about gene technology.
Then, write a list of the things that you want to
know about gene technology. Save your list, and
to assess what you have learned, see how many
of your own questions you can answer after
reading this chapter.

Electrophoresis is a technique used in a laboratory
that results in the separation of charged particles.
DNA is a negatively charged molecule, and is moved
by electric current through an electrophoresis gel.

Gene

Technology

CHAPTER

11

6A

6A