In the mechanism of action for auxin, after auxin binds with its receptor, which of the following happens next?
a. Proteins are targeted for destruction.
b. Genes are activated.
c. Ubiquitin attaches to repressor proteins.
d. Transcription occurs.
e. The cell wall loosens
c
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What would the result be if a drug that blocks the action of polymerase was introduced into a virus-infected organism?
A) The virus would not be able to enter new host cells. B) The viral proteins would not be made and the virus would not be able to reproduce. C) The newly formed virions (virus particles) would be unable to leave the host cell. D) Viral proteins and viral DNA particles would not be able to be assembled.
Lactobacilli are alkalophilic, preferring conditions that are slightly alkaline for optimal growth.
Answer the following statement true (T) or false (F)
Which of the following is a major problem for sessile animals?
a. They are unable to escape unfavorable environmental conditions. b. They are unable to sexually reproduce. c. They are limited in the variety of food they can consume. d. They are not capable of locomotion during their lifetime. e. As adults, they are haploid.
John Endler's experiment with guppies demonstrates which of the following in regard to evolution through natural selection?
A) Male guppies can change color depending on their environment. B) Bigger and brighter is always better. C) There is one optimal set of traits for each species. D) The reproductive success a trait imparts depends on the environmental context.