What Term Could Be Used to Describe the Type of Selection

question 7

Multiple Choice

What term could be used to describe the type of selection occurring with the sickle-cell and normal hemoglobin alleles among areas where malaria is present?

• A)directional selection
• B)balancing selection
• C)stabilizing selection
• D)genetic drift
• E)inbreeding depression

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Definitions:

Herbaceous Eudicot

A type of flowering plant that does not have woody stems above the ground, and has leaves and stems that die down at the end of the growing season.

Vascular Cambium

A layer of plant tissue located between the xylem and the phloem in the stems and roots of vascular plants, responsible for secondary growth and producing new transport cells.

Sclerenchyma

Sclerenchyma is a type of plant tissue characterized by thick, lignified cell walls that provide support and strength to the plant structure.

Annual Rings

Annual rings are layers of growth found in the cross-section of tree trunks, representing one year of growth, and can be used to estimate the age of a tree.