In ________, sex is determined by the ratio of the number of X chromosomes to the number of haploid sets of autosomes
A) humans
B) C. elegans
C) Drosophila
D) reptiles
E) Drosophila and C. elegans
Answer: E
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Which one of the following Gram-positive bacteria is most likely to be the cause of a nosocomial infection?
A) Clostridium difficile B) Staphylococcus aureus C) Streptococcus pneumoniae D) Streptococcus pyogenes
Judah Folkman used which model to discern the relationship between tumor growth and angiogenesis?
A) rabbit eye B) thymus tissue C) bone marrow D) mouse skin E) in vitro cells
The two chromatids of each replicated chromosome must separate from one another and segregate during
A) mitosis. B) meiosis I. C) meiosis II. D) both mitosis and meiosis I. E) both mitosis and meiosis II.
In the blood, most CO2 is transported ________.
A. as dissolved CO2 B. as bicarbonate C. bound to RBCs D. bound to hemoglobin