The third line of defense is called (autoimmunity/clonal/self-tolerant) because it does not normally respond to autoantigens.

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


self-tolerant

Biology & Microbiology

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When DNA is imprinted, the methylation pattern is preserved

Indicate whether the statement is true or false.

Biology & Microbiology

If you forgot the decolorization step while performing a Gram stain, which outcome would you expect?

A. Gram-positive bacteria would be unstained B. Gram-negative bacteria would stain purple C. Gram-positive bacteria would stain pink D. Gram-negative bacteria would be unstained

Biology & Microbiology

What happens when living R strain Streptococcus pneumoniae bacteria are mixed with heat-killed S strain

Streptococcus pneumoniae bacteria?

a. The S strain bacteria come back to life. b. The R strain bacteria are killed, and the S strain bacteria remain dead. c. The R strain bacteria are transformed into S strain bacteria. d. The S strain bacteria are transformed into R strain bacteria. e. The R strain bacteria are killed, and the S strain bacteria come back to life.

Biology & Microbiology

Of the 13 essential vitamins, ____ are water soluble and ____ are fat soluble

a. 3; 10 b. 4; 9 c. 5; 8 d. 9; 4 e. 10; 3

Biology & Microbiology