In the 1930s, Dr. Asbjor Folling described the metabolic disorder he called ____

a. phenylketonuria
b. galactosemia
c. sickle cell anemia
d. lactose intolerance
e. phenylthiocarbamide


a

Biology & Microbiology

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Metanephridia are found in ____

a. annelids b. mammals c. flatworms d. insects e. reptiles

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The letter "D" in the above figure represents

the a. style. b. ovary. c. stigma. d. anther. e. filament.

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What type of chemical bond connects the complementary strands of a DNA molecule to each other?

A) hydrogen bonds B) ionic bonds C) nonpolar covalent bonds D) polar covalent bonds

Biology & Microbiology

Which base pairing is incorrect?

A) G-C B) U-A C) A-G D) A-T

Biology & Microbiology