In a Heterozygous Individual for a Certain Trait,the Dominant Allele

question 50

Multiple Choice

In a heterozygous individual for a certain trait,the dominant allele gives syndactylism.What is the masked,recessive trait in this individual?

• A)Normal vision
• B)Brachydactyly
• C)Normal digits
• D)Polydactyly
• E)Straight thumb

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Definitions:

Myelencephalon

The rear part of the brainstem comprising the medulla oblongata, involved in autonomic functions like breathing and heart rate.

Mesencephalon

Also known as the midbrain, it is a portion of the central nervous system associated with vision, hearing, motor control, sleep/wake, arousal, and temperature regulation.

Neural Crest Cells

Embryonic cells that give rise to a diverse range of tissues in vertebrates, including peripheral nerves, the adrenal glands, and facial cartilage.

Diencephalon

The Diencephalon is a region of the brain that includes structures such as the thalamus and hypothalamus, involved in sensory and neural functions.