CHAPTER 12
LESSON
2 Applying Mendel's Principles
READING TOOL Connect to Visuals Before you read, preview Figure 12-7. Try to infer the
purpose of this diagram. As you read, compare your inference to the text. After you read, revise
your statement if needed or write a new one about the diagram's purpose. Take notes on the lines
provided. Then view the Punnett square and answer the questions below regarding the genotypes
and phenotypes.
Inference:
Revision:
Parent 1
RRYY
Gametes
RY
44 Chapter 12 Introduction to Genetics
Parent 2
rryy
Gametes
RrYy
The F, generation are all RrYy.
150 Chapter 12 Introduction to Genetics
ry
1. What is the phenotype of parent 1?.
2. What is the genotype of parent 1?
3. What is the phenotype of parent 2?.
4. What is the genotype of parent 2?
5. What is the phenotype of the F, offspring?
6. What is the genotype of the F, offspring?.
7. What kind of cross does this figure describe?.
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