A centromere is least likely to ____
a. divide in anaphase of mitosis
b. connect sister chromatids
c. attach chromosomes to spindle fibers
d. cross over during prophase I of meiosis
e. be a component of DNA
ANSWER: d
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The difference in the fundamental niche and the realized niche is
A. the fundamental niche is the actual niche that a species occupies while the realized niche is the potential area that the species is capable of inhabiting. B. the fundamental niche is the entire niche that a species is capable of using while the realized niche is just what is being occupied. C. the fundamental niche is smaller than the realized niche. D. the realized niche is theoretical while the fundamental niche is the entire niche that an organism can use.
The chemical agent/s that produce/s highly reactive hydroxyl-free radicals and also decomposes to O2 gas is ________.
A. iodophors B. hydrogen peroxide C. chlorhexidine D. Cidex E. cationic detergents
Which of the following sequences or molecules is LEAST relevant to the assembly of the basal transcription apparatus for transcription?
A. core promoter B. general transcription factors C. RNA polymerase D. TATA box E. enhancer
Several tomato plants are growing in a small garden plot. If soil water potential were to drop significantly on a hot, summer afternoon, which of the following would most likely occur?
A) Size of stomatal openings would decrease. B) Transpiration would increase. C) The leaves would become more turgid. D) The uptake of carbon dioxide would be enhanced.