A Strawberry Breeder Wants to Increase the Yield of Strawberry

question 12

Essay

A strawberry breeder wants to increase the yield of strawberry plants.To do so,he selects the two highest-yielding plants from a segregating population and uses them as parents that he hopes will produce higher yielding offspring.How would you use Darwin's evolutionary theory to explain the following results?
a)The breeder was able to obtain a better-yielding offspring.
b)The breeder was unable to obtain a better-yielding offspring.

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Definitions:

White Matter

The pale-colored part of the central nervous system that is composed of myelinated nerve fibers.

Ascending Tracts

Nerve pathways that go upward in the spinal cord and brainstem, conveying sensory information from the body to the brain.

Decussate

To cross or intersect so as to form an X; often refers to neural pathways in the central nervous system.

Cervical Enlargement

a widened area of the spinal cord that supplies nerves to the upper limbs.