Its a simple matter (ie thermodynamically) for vesicle to form from the endoplasmic reticulum.
a. true
b. false
Answer: b. false
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A mutation creates a dominant negative allele of a particular gene. The gene encodes a protein that forms a trimer within the cell. If one or more of the subunits has the mutant structure, the entire trimeric protein is inactive. In a heterozygous cell, if the proteins of both alleles are present at the same levels, what percent of the trimers present in the cell will be active?
A) 100% B) 87.5% C) 50% D) 33% E) 12.5%
Which of these shows the correct order of preference for how we deal with waste?
A.Reuse, reduce, recycle, refuse B.Refuse, reduce, reuse, recycle C.Recycle, reuse, refuse, reduce D.Reduce, recycle, refuse, reuse
In plants, parenchyma cells typically secrete all of the following except:a
resins. b. hormones. c. starches. d. enzymes. e. nectar
How could you test whether the association between leafcutter ants and antibiotic-producing fungi represents an obligate mutualistic relationship for the fungi?
a. test how long the mutualistic fungi can survive on ants b. test whether the antibiotics produced by the fungi are specific to the ants' fungal gardens c. test whether the fungal species found on ants can survive without the ants d. conduct a survey to find other fungi that are also associated with the ants