How many chromosomes does a normal, mature, human sperm cell contain?
A) 1
B) 2
C) 23
D) 46
Ans: C) 23
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Catalase is an enzyme used to
a. break beef down into its component amino acids. b. break prions down into their component amino acids. c. break hydrogen peroxide down to form water and oxygen. d. break carbonic acid down to form water and carbon dioxide. e. break down a variety of metabolites.
Cardiac output can be increased by all of the following except
A) decreasing ejection fraction. B) decreasing end systolic volume. C) increasing stroke volume. D) increasing ejection fraction. E) increasing heart rate.
If the genotype of an individual contains alleles for a particular trait that differ in their expression, the individual is said to be ________ for that trait
A) homozygous B) heterozygous C) recessive
A mugger steals your wallet causing all of the following to happen EXCEPT ________
A) inability to read close-up print B) increased glucose uptake to the liver from blood C) increased rate and force of heartbeat D) increased metabolic rate