Pedigrees

Pedigrees

Genetics Module

Let's Review

Multiple Choice

How many alleles does a person carry for a trait?

• 1

• 2

• 3

• 4

Multiple Choice

What you see, or the physical appearance of an organism, is called the ---

• genotype.

• phenotype.

Lesson Essential Question

How do I determine inheritance patterns from reading a pedigree chart?

Copy the EQ into your notebook

Lesson Headings

• What is a pedigree?

• How do I determine inheritance patterns from a pedigree?

What is a pedigree?

Multiple Choice

What does an open circle represent?

• Not Affected Male
• Not Affected Female
• Affected Male
• Affected Female

Multiple Choice

What does a horizontal line between a square and a circle mean?

• They are siblings
• They are cousins
• They are married ("together")
• They are the children

Multiple Choice

How many generations are shown in this pedigree?

• 1
• 2
• 3
• 4

How do I determine inheritance patterns from a pedigree?

Multiple Choice

Is this trait (the shaded individuals) dominant or recessive?

(HINT: Does it skip generations?)

• dominant
• recessive

End of Lesson