An important by-product of photosynthesis is:
A) protein. B) water. C) starch. D) glucose. E) oxygen.
Answer: E
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Monod's group found that that appearance of ?-galactosidase correlated with that of galactoside permease. This ultimately led his group to the conclusion that:
A. constitutive expression involved two genes. B. ?-galactosidase production is contingent on the presence of galactosidase. C. the expression of ?-galactosidase and permease is under the control of another gene. D. a mutation in the ?-galactosidase gene would decrease expression of a permease gene. E. a mutation in the regulator gene would decrease expression of galactosidase and permease.
Halophilic Archaea are the only inhabitants of highly saline environments
Indicate whether the statement is true or false.
Following cleavage of the zygote, which of the following is the first to occur?
a. blastula b. gastrula c. neural crest d. morula e. primitive streak
In an epistatic interaction, the genes must be located on the same chromosome
Indicate whether the statement is true or false