Members of the genus Streptococcus carry out ________ fermentation.
A. butanediol
B. homolactic
C. heterolactic
D. mixed acid
Answer: B
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In which of the following laws did Mendel assert that one trait in a heterozygote will conceal the presence of another trait for the same characteristic?
a. law of dominance b. law of segregation c. law of dependent assortment d. law of incomplete dominance
Gene duplication can result from _____
a. a normal crossover event b. exon shuffling c. unequal crossing over d. a point mutation e. alternative splicing
The net outcome of predator-prey interactions in the basic Lotka-Volterra models is that
A) the predator drives its prey to extinction and then goes extinct itself. B) the prey population declines and this causes the predator population to also decline. C) predator and prey populations eventually converge on equilibrium population sizes that are maintained into infinity. D) predator and prey populations oscillate, with each predictably increasing and decreasing in response to the other.
Membrane-bound vesicles containing a substance synthesized by a cell fuse to the outer cell membrane and release their contents to the outside world. What is this process called?
a. excretocytosis b. pinocytosis c. phagocytosis d. exocytosis e. endocytosis