Mutations may arise by replication error,
__________ activity, or exposure to environmental
hazards. Fill in the blank(s) with the appropriate word(s).
Answer: transposable element
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Compared with other precipitation tests, agglutination tests are
A) more sensitive. B) less sensitive. C) about equally sensitive. D) highly variable in sensitivity, and thus the sensitivities cannot be compared.
Your 49-year-old mother has just been diagnosed with subacute endocarditis with the following symptoms: fever, a rash, and early congestive heart failure. You wonder how this infection occurred, particularly since she appeared to be healthy before this. Which of the following questions for her physician is most pertinent to understanding the cause of this infection?
A. Could she have AIDS? B. Could she have contracted this from a mosquito bite, since she does so much gardening? C. Does she have an abnormal heart valve or a murmur? D. Is this infection related to menopause?
The structure in the accompanying figure labeled as 4 is:
a. haploid.
b. diploid.
c. a zygote.
d. polyploid.
e. produced by meiosis
The pH indicator in the MR/VP medium is
A. The correct answer is not listed B. Kovac's reagent C. Phenol red D. Neutral red E. Methyl red