Page 162 - Science Course 3 (Book 1)

Traits: Inheritance and Mutations Mo4-L5a: What is Genetic Inheritance?
Lesson 5

gene
a section of DNA on a chromosome that has genetic
In this topic, you will learn the following information for one trait.
lessons:

Mo.4–L5a: What is Genetic Inheritance?
Mo.4–L5b: What Influences Traits?

Mo4-L5a What is Genetic Inheritance?

KEY CONCEPTS:
1. What is inheritance?
2. How are traits and genes related?
Let’s Begin

Vocabulary A-Z

Let us learn some vocabulary What is Inheritance?
A distinguishing characteristic of an organism is a
trait.
trait
a distinguishing characteristic of an organism. The passing of traits from generation to generation
is inheritance.

Purple X Purple
(Hybrid) (Hybrid)
inheritance
the passing of traits from generation to generation.

Purple and White offspring

Carrier Unaffected
mother father

Carrier Affected Unaffected Unaffected
Daughter Son Daughter Son

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