Which genetic disease(s) are caused by defective proteins that are not enzymes?

A) Tay—Sachs disease and phenylketonuria
B) Sickle-cell anemia and cystic fibrosis
C) Lesch—Nyhan syndrome.
D) Albinism and alkaptonuria
E) All of these


B

Biology & Microbiology

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Binding of the peptide hormone insulin to its receptor tyrosine kinase results in each of the following

cellular activities EXCEPT ____.

a. cell division b. glucose uptake c. regulation of metabolic reactions d. cell growth e. photosynthesis

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In seed plants, the transfer of male gametophytes to female reproductive parts is a process called ____

a. meiosis b. pollination c. fertilization d. syngamy e. sporulation

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How many embryos did Nadya Suleman’s

doctor put into her uterus?

a. 8 b. 9 c. 10 d. 11 e. 12

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Which of the following does NOT describe

some aspect of polysaccharides? a. energy storage b. straight or branched chain c. glucose subunits d. contain only carbon, hydrogen, and oxygen atoms e. produced by condensation reactions

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