Which of the following does not normally move to any great extent from the blood into the filtrate at the renal corpuscle?
A) hydrogen ions B) water C) urea D) plasma proteins
Answer: D
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Which of the following is not true of telomerase function?
A. Telomerase carries a 9-base DNA template complementary to 1.5 repeat units of the telomere sequence. B. One strand of the telomere sequence is elongated 6 bp at a time. C. The telomerase repeats its reaction many times in one telomere-binding event. D. The telomeres extended 3' end is made double-stranded by lagging strand synthesis. E. The RNA template is repositioned after each extension of the 3' end.
Which enzyme is the product of the phr gene in E. coli?
What will be an ideal response?
Which process not only yields electrons during photosystem I and II, but also is the source of almost all the oxygen in
Earth’s atmosphere? a. glycolysis b. photolysis c. Calvin cycle d. CAM pathway e. noncyclic electron transport
The mutant fly in the accompanying figure illustrates:
a. the existence of homeotic genes in Drosophila.
b. the concept of totipotency.
c. the normal functions of genes affecting segment identity.
d. genetic diversity in the fly.
e. a structure containing many nuclei residing in a common cytoplasm