There was a massive immigration of Irish to the United States in the mid-19th century because of a failure of the Irish potato crop caused by:

A. Trichomonas vaginalis
B. Plasmodiuim falciparum
C. Phytophora infestans
D. Giardia lamblia
E. Spudsik emeraldensis


C. Phytophora infestans

Biology & Microbiology

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If a cell is dividing by binary fission then you know that:a

mitosis has taken place without cytokinesis. b. homologous chromosomes have already paired. c. the cyclin-Cdk complex is no longer phosphorylating enzymes. d. the cell cycle is out of control. e. the cell is prokaryotic

Biology & Microbiology

Hemophilia A is an X-linked recessive disorder. If a normal man marries a woman who is a carrier, what fraction of their daughters will have hemophilia? Select one:

a. 25% b. 50% c. 75% d. 0% e. 100%

Biology & Microbiology

Viral meningitis normally requires aggressive antiviral treatment.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following statements concerning the biochemical oxygen demand (BOD) is CORRECT?

A. It is a measure of the amount of oxygen in water. B. It is proportional to how potable water is. C. It is used as a bioreceptor index. D. It is a measurement of the amount of oxygen that aerobic bacteria require to decompose organic wastes in water. E. It is a filter system to purify drinking water.

Biology & Microbiology