Helper T cells produce ____
a. cytokines
b. antibodies
c. plasma cells
d. chemicals that cause apoptosis
e. histamine
ANSWER: a
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The value of indirect Gram staining from a broth culture in comparison to a agar plate culture is:
a. there is no significant difference in the results of the indirect smear technique. b. organisms tend to demonstrate natural cell shape and arrangement in liquid medium. c. organisms tend to demonstrate more growth and easier visualization from agar plates. d. none of the answers are correct.
Compare and contrast sexual and asexual reproduction
What will be an ideal response?
Which of the following is NOT an example of
sensory adaptation? a. a loss of the sense of pressure of clothes against the skin b. adjustment to repeated jumping into a body of cold water c. response to lack of oxygen at high altitudes d. eventual loss of awareness of a constant noise e. the loss of the ability to smell a person’s perfume after being in that person’s presence for some time
The proteins associated with DNA in chromosomes are ____
a. antigens b. albumins c. haptens d. histones e. centrioles