The genes of a single operon are all regulated by the same repressor, operator, and promoter.
Answer the following statement true (T) or false (F)
True
It is true that the genes of a single operon are all regulated by the same repressor, operator, and promoter.
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A salmon follows a scent trail upstream to find its way back to the stream where it hatched. What type of sensory receptor cell would it use?
A) thermoreceptors B) mechanoreceptors C) chemoreceptors D) electroreceptors E) nociceptors
You have discovered a new species of seal and are observing their behavior on a beach. You see groups of females affiliated with a single male. What data support the hypothesis that sexual selection played a role in the evolution of these behaviors?
A. Most of the offspring of a single group are parented by the male that defends the group. B. Male parentage is independent of group affiliation—females mate with any male on the beach. C. Males spend a large amount of energy on behavioral displays and fighting with other males. D. Females mate on the sly with different males so the parentage of the offspring is uncertain. E. Males switch groups regularly and take turns defending all of the females on the beach from predators.
For most multicellular eukaryotes, including humans, mitochondria are inherited
a. only from the father. b. from both the father and the mother. c. from the mother for females and from the father for males. d. randomly from either the father or the mother. e. only from the mother.
Food supplies that sustain animal populations have the capacity to increase:a
arithmetically. b. by accumulation and deduction. c. geometrically. d. symmetrically. e. migration rates.