Replication of DNA
a. takes place during interphase.
b. results in two double helices from one.
c. is semiconservative.
d. is all of the above.
d
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A scientist is studying several areas along an elevation gradient. Her study involves prescribed burns (purposefully set, low-intensity fires) in the different areas, followed by a comparison of the type and abundance of organisms that colonize them over the next ten years. What scale best describes her study?
A. Physiological ecology B. Ecosystem ecology C. Organismal ecology D. Community ecology E. Population ecology
A drug that disrupts a microbial function not found in animal cells usually has a higher therapeutic index.
Answer the following statement true (T) or false (F)
Definition of photosynthesis
What will be an ideal response?
Which one of the following statements about haplodiplontic life cycles is false?
A. The gametophyte stage produces gametes by mitosis. B. Mitosis occurs in both sporophyte and gametophyte stages. C. The zygote is the only diploid cell in the sporophyte stage. D. Spore mother cells produce haploid spores by meiosis. E. For each gene, cells of the gametophyte stage have a single allele.