Page 132 - Science Course 3 (Book 1)
P. 132
Mendel’s Experiments Mo4-L1a: What is the Cross-Pollination
Experiment?
Lesson 1
Mendel’s Experimental Methods
Mendel studied genetics by doing controlled
In this topic, you will learn the following breeding experiments with pea plants.
lessons:
There are two types of pollination:
• self-pollination
Mo.4–L1a: What is the Cross-Pollination Experiment? • cross-pollination
Mo.4–L1b: What is the Conclusion of Mendel’s
Experiment?
Cross-pollination
What is the Cross-Pollination
Mo4-L1a Experiment?
KEY CONCEPTS:
1. Why did Mendel perform cross-pollination
experiments?
Vocabulary A-Z
Let us learn some vocabulary
Heredity
the passing of traits from parents to offspring. Self-pollination
When a true-breeding plant
self-pollinates, it always
produces offspring with traits
that match the parent.
Let’s Begin
Mendel cross-pollinated pea plants himself and
Early Ideas About Heredity recorded the traits that appeared.
Heredity is the passing of traits
from parents to offspring.
Gregor Mendel is known as
the father of genetics—the study
of how traits are passed from 2
parents to offspring. 1
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