What is the main cause of carbon dioxide build-up in the atmosphere?
a. burning fossil fuels
b. deforestation
c. droughts
d. flooding
e. respiration due to overpopulation
ANSWER: a
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Eukaryotic cells regulate the expression of multiple genes by having ____
a. individual activators for individual genes b. a few activators that can interact with small subsets of genes c. activators that serve as catalysts for further activator protein synthesis d. a few activators that work in different combinations to activate different genes
e. a single activator that undergoes modifications to enable interaction with different promotersWhat is heterozygote advantage? Provide one example of this and briefly explain. What will be an ideal response?
What is the smallest number of nucleotides that must be added or subtracted to change the triplet grouping of the genetic message?
A) one B) two C) three D) four
The ability of a fungus to grow as a yeast or a mold depending on its environmental temperature is called
A. dimorphism. B. fungal virulence. C. dermatophytes. D. opportunistic fungi. E. parasitism.