Which Statement About a Dihybrid Cross Is True

question 34

Multiple Choice

Which statement about a dihybrid cross is true?

• A) It results in a genotypic ratio of 2:1.
• B) It involves genes located on the sex chromosomes.
• C) It results in offspring of lower quality than that of the parents.
• D) It results in two different phenotypes in the F₂ generation.
• E) It is a cross between identical double heterozygotes.

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Definitions:

Broca's Area

A region in the frontal lobe of the left hemisphere of the brain that is involved in language processing, speech production, and comprehension.

Wernicke's Area

A region of the brain that is important for language development and comprehension.

Limbic System

is a complex system of nerves and networks in the brain, involved with instinct and mood. It controls basic emotions and drives.

Somatic Nervous System

A part of the peripheral nervous system that controls voluntary movements of the body through the innervation of skeletal muscles and mediates sensory information.