Which of the following is an autosomal recessive disorder?

A) hemophilia
B) sickle-cell anemia
C) Down syndrome
D) Huntington disease
E) Turner syndrome


Answer: B

Biology & Microbiology

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Which hormone is responsible for the development of female secondary sex characteristics?

A. Testosterone B. Estrogen only C. Progesterone only D. Estrogen and progesterone E. Human chorionic gonadotropin

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What are the receptors of sharks that can detect disturbances in electrical fields called?  

A.  Organs of Corti B.  pacinian corpuscles C.  lateral line canals D.  nodes of Ranvier E.  ampullae of Lorenzini

Biology & Microbiology

What type of tissue is blood?

a. epithelial b. muscular c. connective d. adipose e. noncellular fluid

Biology & Microbiology

Discuss factors that must be taken into account when setting standards for safe levels of exposure to potentially

harmful chemicals in the environment. Explain why setting these standards is such a complex task. What will be an ideal response?

Biology & Microbiology