Which of the following statements regarding meiosis is most accurate?
A) Crossing over occurs during metaphase I.
B) A diploid cell produces haploid daughter cells.
C) Haploid cells produce diploid cells.
D) Homologous (non-sister) chromatids separate during anaphase II.
E) Meiosis has the same number of stages as mitosis.
B
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You are a virologist studying a particularly pathogenic virus that infects sea turtles. In the course of your research, you discover that the virus is destroyed by a protein-digesting enzyme. The structure most vulnerable to this enzyme must be the viral
a. membrane. b. envelope. c. DNA. d. capsid.
Leaf abscission is initiated and orchestrated by changing levels of the plant hormone ____
a. ethylene b. cytokinin c. auxin d. abscisic acid e. gibberellin
Regulation of cellular processes via chromatin remodeling or compaction are used by eukaryotic cells but not archaeal cells.
Answer the following statement true (T) or false (F)
Opportunistic species
A. are good dispersers and colonizers of new habitats. B. are slow to mature. C. have long life spans. D. are composed of large individual organisms. E. are adapted to stable environments.