The type of immunoglobulin illustrated in Figure 16.1 is
A. IgE.
B. IgG.
C. IgA.
D. IgM.
E. IgD.
Answer: D
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Plant cells removed of cell walls, when placed in distilled water, will ________________.
a. be stable b. shrivel c. swell and burst d. be flaccid e. be turgid
Which of the following is an exergonic reaction?
a. folding laundry b. synthesizing a protein c. burning wood for a campfire d. building a tower out of blocks
Which of the following statements about conjugation is false?
A) In conjugation a bacterium carries a fertility plasmid. B) Conjugation can be a problem because fertility plasmids often carry genes that endow cells with drug resistance or the ability to produce toxins. C) In conjugation a bacterium attaches to a neighboring bacterial cell that lacks a fertility plasmid. D) Conjugation is sexual reproduction for bacteria. E) In conjugation a bacterium forms a small hollow tube called a pilus.
True or False: sRNAs can only regulate expression by binding mRNA
a. TRUE b. FALSE