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.
C
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after anaphase but before the cytoplasm divides, how many chromosomes does the cell have?
a. 2 b. 4 c. 8 d. 16 e. none of these
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Fill in the blank(s) with correct word
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A) bacteriostat B) fungistat C) bactericide D) antibiotic
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