While Watching Emeril on TV One Afternoon, You Learn That

question 230

Multiple Choice

While watching Emeril on TV one afternoon, you learn that smell is an important component in the experience of flavor. Emeril says, "In fact, the olfactory systems in humans have __________ different types of receptors that allow us to distinguish so many smells."

• A)about a thousand
• B)four
• C)1.5 million
• D)sixteen

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Definitions:

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, associated with physical growth delays, characteristic facial features, and mild to moderate intellectual disability.

Homozygous

Having two identical alleles for a trait.

Alleles

Variations of a gene that occur on the same place on a chromosome, contributing to the diversity of phenotypes in a population.

Sickle-Cell Anemia

Sickle-cell anemia is a genetic blood disorder characterized by red blood cells that assume a rigid, sickle shape, leading to poor oxygen delivery, pain, and potential complications.