Use Figure 14

question 56

Multiple Choice

Use Figure 14.1 and the following description to answer the questions below.
In a particular plant, leaf color is controlled by gene locus D. Plants with at least one allele D have dark green leaves, and plants with the homozygous recessive dd genotype have light green leaves. A true-breeding dark-leaved plant is crossed with a light-leaved one, and the F₁ offspring is allowed to self-pollinate. The predicted outcome of the F₂ is diagrammed in the Punnett square shown in Figure 14.1, where 1, 2, 3, and 4 represent the genotypes corresponding to each box within the square.

Figure 14.1
-Which of the boxes marked 1-4 correspond to plants with dark leaves?

• A) 1 only
• B) 1 and 2
• C) 2 and 3
• D) 4 only
• E) 1, 2, and 3

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Definitions:

Type-I Survivorship

A survivorship curve characterized by high survival rates of the young and middle-aged, with most mortality occurring among the elderly.

Surviving

Surviving refers to the act or process of continuing to live or exist, especially in spite of challenging circumstances or threats to existence.

R-Selected Species

Species characterized by high reproductive rates, short lifespans, and a focus on quantity of offspring rather than quality.

Lifespan

The maximum duration of life for an individual of a species.