Which of the following components of the immune system destroys bacteria in a way similar to an antitank weapon destroying armored military tanks by punching holes in the wall of the bacteria?
A) complement protein
B) macrophages
C) plasma cells
D) major histocompatibility complex proteins
A
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Intercalating agents
A. act during DNA synthesis. B. often result in frameshift mutations. C. only act in dormant cells. D. alter the hydrogen bonding properties of the bases. E. act during DNA synthesis AND often result in frameshift mutations.
Regarding Investigating Life 22.5, how do the young leaves produce the sugary nectar that the ants eat?
A. from the ants B. by photosynthesis C. through their roots D. from their fruits E. by respiration
The daughter nuclei produced by meiosis are
a. genetically identical. b. diploid. c. haploid. d. both a and b.
DNA and histones form beadlike globules known as __________.
Fill in the blank(s) with the appropriate word(s).