In tissue capillaries, __________ combines with water to form carbonic acid, which after being transported to the lungs, dissociates back to its constituents.
A. CO2
B. O2
C. H2CO3
D. hemoglobin
E. HCO3-
A. CO2
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By the end of meiosis I of oogenesis, an oogonium becomes
A) an ovum and a tropical body. B) a secondary oocyte and a polar body. C) two polar bodies of equal size. D) two diploid cells.
Explain why color-blindness is much more common in males than in femalesWhat will be an ideal response?
Which enzyme replaces RNA primers with DNA after elongation?
A) DNA polymerase I B) DNA polymerase III C) RNA polymerase D) RNA primase E) DNA ligase
Which of the following is not true of viruses?
A. Viruses replicate by binary fission. B. Viruses consist of one or more molecules of DNA or RNA enclosed in a coat of protein and sometimes in other more complex layers. C. Viruses can exist in two phases: intracellular and extracellular. D. Viruses are acellular.