All unicellular organisms belong to the same domain of life

Indicate whether the statement is true or false.


Answer: FALSE

Biology & Microbiology

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During genetic drift the gene frequencies of a population will change ________

a. back and forth and eventually stabilize b. in a random direction based upon chance c. in a random direction based upon the predators faced by the population d. in a predictable direction based upon the number of females in the population e. in a predictable direction based upon the number of males in the population

Biology & Microbiology

Imagine that a mutation for red eye color becomes very common in a population of flies because female flies in this population prefer to mate with red-eyed males. This is an example of

A) directional selection. B) stabilizing selection. C) disruptive selection. D) sexual selection. E) genetic drift.

Biology & Microbiology

The study of the cause of disease is known as (epidemiology/etiology/pathology)

What will be an ideal response?

Biology & Microbiology

How does immunofluorescence microscopy detect rabies in brain tissue of an infected animal?

A) Fluorescent-tagged antibodies provide light needed to see the virus particles in the microscope. B) Fluorescent-tagged antibodies bind to cytotoxic T cells that are attempting to kill infected cells in the tissue. C) Rabies virus naturally fluoresces under ultraviolet light. D) Fluorescent-tagged antibodies bind to the antibodies generated to fight the infection. E) Fluorescent-tagged antibodies bind to rabies antigen in the tissue and are visible in a specialized microscope.

Biology & Microbiology