Which of the following technologies can compare the expression of thousands of genes at once?

A.) DNA fingerprinting
B.) gel electrophoresis
C.) gene sequencing
D.) DNA microarrays


Answer: D.) DNA microarrays

Biology & Microbiology

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Of the following organisms, which can be described as a fastidious obligate intracellular parasite that multiplies by binary fission in the cytoplasm of host cells and infects humans as accidental hosts in most cases?

a. Rickettsia b. Chlamydia c. Calymmatobacterium d. Coxiella

Biology & Microbiology

About ________ percent of the human genome sequence comes from retroviruses.

A) 4 B) 8 C) 12 D) 21

Biology & Microbiology

Natural selection is only one of several possible causes of evolution

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following organisms does NOT contain chitin?

a. Crabs b. Scorpions c. Grasshoppers d. Lobsters e. Snails

Biology & Microbiology