Cerebrospinal Fluid

question 70

Multiple Choice

Cerebrospinal fluid

• A) bathes the brain and spinal cord.
• B) is colorless.
• C) is formed from water and solutes that have left capillaries in the brain.
• D) includes all of these characteristics.
• E) includes the characteristics of a and b only.

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Definitions:

Genetic Polymorphism

The simultaneous occurrence of two or more discrete phenotypes within a population. In the simplest case, each phenotype results from a different allele or combination of alleles of a single gene. In more complex cases, the phenotypes result from complex interactions between many different genes and the environment.

Phenotypes

The set of visible or measurable traits of an organism that arise from the interaction of its genotype with the environment.

Population

A population consisting of members of the same species who live and reproduce within a specific region.

Protein Structure

The three-dimensional arrangement of atoms within a protein molecule, which determines the protein's functions based on its shape, including primary, secondary, tertiary, and quaternary structures.