Which of the following best defines autoimmunity?

a. Hypersensitivity to self-antigens
b. Delayed immune system response
c. Inherited immune system insufficiency
d. Immunodeficiency present from birth


a. Hypersensitivity to self-antigens

Hypersensitivity to self-antigens is best defined by autoimmunity.

Biology & Microbiology

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The main class of neurotransmitters involved in regulating mood in vertebrate animals is/are

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When a certain form of a trait increases the fitness of the individual, this allele will tend to ____ over time

a. affect the function of vestigial structures b. lead to extinction of the population c. be eliminated from the population d. decrease in frequency in the population e. increase in frequency in the population

Biology & Microbiology

What is a form of recombination in bacteria that involves the F plasmid?

What will be an ideal response?

Biology & Microbiology

Cocoa butter is a source of __________ fat.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology