Transcript Ch. 1: “Biology and You”

Ch. 1: “Biology and You”
Active Reading: “Themes of
Biology”
SKILL: READING
EFFECTIVELY
1. Why does the word traits appear in parentheses in Sentence
1?
A: It is a synonym for characteristics that directly precede it.
2. The word genes appears in boldface type in Sentence 2. What
does the use of boldface type indicate?
A: It shows that it is a Key Term, or important word, that is
defined in the sentence.
3. Based on Sentence 3, how would you define the word
heredity?
A: Heredity is the passing of traits from parents to offspring.
SKILL: RECOGNIZING
CAUSE AND EFFECT
4. A cause-and-effect relationship is identified
in Sentence 4. What is the effect of
heredity?
A: It is that children tend to resemble their
parents.
5. Another cause-and-effect relationship is
identified in Sentence 5. What causes
genes to change?
A: Damage to genes causes change.
SKILL: RECOGNIZING
CAUSE AND EFFECT
6. What relationship is indicated by the
parentheses in Sentence 7?
A: The relationship indicated is that an egg
and sperm are types of sex cells.
7. Sentence 8 describes two cause-and-effect
relationships. What are they?
A: Mutations in body cells cause disruption in
the control of cell reproduction, and
disruption in the control of cell reproduction
causes cancer.
Multiple Choice
8. A change in the DNA of a gene is
called a ___
a. cancer.
b. trait.
c. mutation.
d. sex cell.
Answer: c