Rheumatoid arthritis is a type (I/II/III/IV) hypersensitivity reaction that results when B cells produce autoantibodies that damage the joints

What will be an ideal response?


III

Biology & Microbiology

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Prostaglandins are ____

a. protein molecules that act either by paracrine or autocrine mechanisms. b. fatty acid derivatives that act either by paracrine or autocrine mechanisms. c. neurotransmitters that act by paracrine mechanisms. d. amine molecules that act by neuroendocrine mechanisms. e. steroid molecules that are lipid soluble.

Biology & Microbiology

In humans, sex determination generally depends upon

a. whether or not the X chromosome is present. b. the number of X chromosomes present. c. environment in the womb. d. whether or not the Y chromosome is present. e. how many autosomes are present

Biology & Microbiology

Which of the following is one of two or more gene variants that determine a particular trait for a characteristic?

a. allele b. karyotype c. euploid d. aneuploid

Biology & Microbiology

__________ relay signals between neurons.

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

Biology & Microbiology