Mad cow disease is caused by

a. viruses.
b. proteins.
c. infectious bacteria.
d. parasites.
e. fungi.


B

Biology & Microbiology

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Microevolution can be said to have taken place when

a. a population experiences a shift in allele frequencies. b. a mutation occurs in a population. c. several mutations occur in a population. d. a feature of an individual animal changes through use or disuse. e. when a population has different forms of the same gene.

Biology & Microbiology

Which of the following is not one of the four most abundant elements in the body?

a. carbon b. hydrogen c. oxygen d. nitrogen e. calcium

Biology & Microbiology

The maduromycetes differ from other high G + C Gram-positives in that they contain the sugar madurose in cell extracts.

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

Biology & Microbiology

All chemical reactions are, in theory, reversible

Indicate whether the statement is true or false

Biology & Microbiology