71

Lesson 71 of 84 ยท Crosscutting Concepts

Lesson

Selective Breeding (Part 4)

What You'll Learn

Selective breeding is when humans choose organisms with desired traits to reproduce. Dog breeds, crop varieties, and livestock have been developed through thousands of years of selective breeding.

Key Words

  • evolution
  • adaptation
  • fossil record

Steps

Step 1 โ€” Read

Review the background information on Crosscutting Concepts before starting.

Step 2 โ€” Do

Create a Punnett square to predict the offspring of two parents. Use a trait like eye color or seed shape. Calculate the probability of each outcome.

Step 3 โ€” Observe

Note any unexpected results and think about why they happened.

Step 4 โ€” Record

Share your findings with the class or a partner and discuss what you learned.

Check Your Understanding

Question 1

1 of 3

What is a mutation?