Why does transcription occur in the nucleus and not in the cytoplasm in eukaryotes?
A. Ribosomes cannot leave the nucleus.
B. Codons are only found in the nucleus.
C. RNA cannot exist in the cytoplasm.
D. DNA cannot leave the nucleus.
Answer: D
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Why does total biomass (graph e in the figure above) not vary with AMF diversity?
A) Plant growth is unaffected by fungal diversity. B) Most of the plants in this system do not form mycorrhizal associations. C) Bromus erectus is the dominant plant species. D) Lotus corniculatus is a rare species.
An open reading frame (ORF) encodes for
A) a carbohydrate. B) a polypeptide. C) mRNA. D) a carbohydrate or a polypeptide.
Which of the following statements regarding the Chlamydia life cycle is incorrect?
A. Elementary bodies differentiate into reticulate bodies in the cell nucleus. B. The elementary body is the infectious stage of Chlamydia. C. Elementary bodies are released from the host cell to continue the infectious cycle. D. Reticulate bodies multiple by binary fission.
The potential capacity to produce offspring is called:a
life history traits. b. fitness. c. age structure. d. density. e. fecundity.