The process that decreases the number of organisms with phenotypes less fit to meet environmental
challenges is:
a. natural selection.
b. genetic drift.
c. gene flow.
d. genetic polymorphism.
e. migration.
A
Biology & Microbiology
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The ABO blood types have __________ different
genotypes. a. 4 b. 6 c. 8 d. 12 e. 16
Biology & Microbiology
Which of the following is not true of measles?
A. It causes cell membranes to fuse to form syncytia. B. It is a single-stranded nonenveloped RNA virus. C. Its causative agent is a member of the Morbillivirus genus. D. It is transmitted by respiratory droplets. E. It is in the Paramyxovirus family.
Biology & Microbiology
Proteins are polymers of how many different amino acids?
a. 16 b. 20 c. 24 d. 64
Biology & Microbiology
Nuclear membrane reappears during
A. Metaphase B. Prophase C. Anaphase D. Interphase E. Telophase
Biology & Microbiology