Chapter 12.1.1 (Exam 3) Pea Plants

Question 1

How did Gregor Mendel study inheritance?

Answer 1

Gregor Mendel used pea plant as model system to study inheritance

Question 2

What makes the pea plant a good model system?

Answer 2

One seed can lead to many individuals

Inexpensive

Short generation time

Easy to grow

Observable variability

Question 3

What is a character?

Answer 3

Observable physical features (e.g., seed shape)

Question 4

What is a trait?

Answer 4

Form of a character (e.g., round or wrinkled seeds)

Question 5

What is a phenotype?

Answer 5

Observable properties of an individual resulting from both genetic and environmental factors

Question 6

What variety of pea plants did Mendel work with?

Answer 6

Mendel worked with true-breeding varieties

Question 7

What is the P (parental) generation?

Answer 7

The initial plants that get pollinated

Question 8

What is the F_1 (first filial) generation?

Answer 8

The seeds and offspring of the P generation

Question 9

What is the F_2 (second filial) generation?

Answer 9

The seeds and offspring of the self-pollination of the F_1 generation