A chicken somatic cell carries 78
chromosomes. A chicken sperm cell will
contain how many chromosomes?
a. 19
b. 39
c. 78
d. 156
e. 312
B
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In microscopy, resolution can be defined as the:
a. magnification power. b. extent to which detail in the magnified object is maintained. c. ability of objects to stand out from the background. d. ability to see objects against a black background.
Which of the following invertebrates is most closely related to vertebrates?
a. lancelets b. tunicates c. sea stars d. earthworms e. leeches
According to genome analysis, a member of the genus ________ is most closely related to the mitochondrion.
A. Prochloron B. Agrobacterium C. Rickettsia D. Escherichia
A microorganism that causes an infection is called a
A. avirulent infection. B. colony. C. commensal. D. pathogen.