If two copies of a gene are different alleles, the condition is referred to as ____
a. homozygous
b. hybrid
c. heterozygous
d. codominant
e. dominant
ANSWER: c
Biology & Microbiology
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The reduction of atmospheric nitrogen to ammonia is called ________.
A. nitrification B. denitrification C. nitrogen fixation D. ammonification
Biology & Microbiology
Typically, flower color and shape are associated with what type of selective pressures?
a. natural selection b. mutation c. sexual selection d. evolution
Biology & Microbiology
The organizational unit of skeletal muscle tissue is the:a
sarcoplasmic reticulum. b. transverse tubule. c. sarcomere. d. Z line. e. motor unit.
Biology & Microbiology
The most appropriate unit of measurement for intact archaea is the
A. meter (m). B. millimeter (mm). C. micrometer (?m). D. nanometer (nm). E. centimeter (cm).
Biology & Microbiology