Which of the following is a genetic disorder that results from one extra chromosome in each cell during the development of the fetus? 

A. Down syndrome
B. Cerebral palsy
C. Congenital heart disease
D. Attention deficit hyperactivity disorder
E. Juvenile rheumatoid arthritis


A. Down syndrome
Down syndrome is a genetic disorder resulting from one extra chromosome in each of the millions of cells formed during development of the fetus. It is the most common chromosomal abnormality in humans.

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A) Metabolism B) Excretion C) Secretion D) Adsorption

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The bioavailability of minerals is influenced by many factors. List the ways mineral absorption is enhanced and reduced

What will be an ideal response?

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What percentage of the U.S. population reports having some sort of disability??

A) about 4% B) about 11% C) about 18% D) about 25%

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The person who is responsible for the day-to-day operation of a laboratory and works directly under the authority of the laboratory director is the ____________________.

Fill in the blank(s) with the appropriate word(s).

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