Achondroplasia, a hereditary form of dwarfism, is an autosomal dominant disorder; however homozygous dominant
individuals either die before birth or very shortly thereafter. The homozygous recessive condition is normal. A dwarf
couple decide to have children. Use this information to answer the following question:Of
the children of this couple who survive, what is the probability that they will be normal?
a. 0
b. ¼
c. 1/3
d. 2/3
e. ½
ANSWER: c
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The bacteriological safety of drinking water is determined by testing water samples for the presence of human pathogens
Indicate whether the statement is true or false
The acid released in the stomach is
a. carbonic acid. b. hydrochloric acid. c. nitric acid. d. sulfuric acid. e. phosphoric acid.
Straps of dense connective tissue that join bones to bones at joints are called ________.
a) ligaments b) marrow c) tendons d) vertebra
Glucose molecules provide energy to power the swimming motion of sperm. In this example, the sperm are changing
A) chemical energy into kinetic energy. B) chemical energy into potential energy. C) kinetic energy into potential energy. D) kinetic energy into thermal energy.