Biological Science

Chapter 1: Activities

Activity 1.1 Artificial Selection

CDA1_1.jpg How can artificial selection lead to changes in a population over several generations? The wild mustard species Brassica oleracea has been altered in many ways using artificial selection. Brussels sprouts, for example, are a domesticated variety of wild Brassica that were artificially selected for large bud size. Broccoli and cabbage were bred from Brassica by selecting for large flower stalks and short petioles, respectively. In this activity, you’ll use artificial selection to develop a strain of broccoli that can be grown in a cool, moist environment.

Selection for Floral Stalk Height
Balancing Floral Stalk Height with Fungal Resistance

Chapter 1, Section 1.2, The Theory of Evolution by Natural Selection

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