What is one of the roles of the APC/C during anaphase?
A. to directly target the mitotic cyclins for destruction
B. to directly target separase for destruction
C. to directly target cohesin for destruction
D. to directly target microtubules for destruction
Answer: A
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Which is found in slime molds but not in fungi?
A. nonmotile spores B. flagellated cells C. zygote formation D. photosynthesis E. chitin in cell walls
White blood cells fight infection by
A. engulfing infectious pathogens and making antibodies. B. producing antibiotics that will kill bacteria and fungi. C. transporting large amounts of oxygen to the infected area. D. increasing platelet production and forming a plug to seal off the area.
Within cells, DNA molecules are wrapped around ____ proteins to form ____ fiber, which condenses into __ during cell replication.
A. histone, chromosome, chromatin B. chromosome, chromatin, histones C. histone, chromatin, chromosomes D. chromosome, histone, chromatin
Two species of squirrels live on either side of the Grand Canyon. It is believed that a long time ago, before being separated by the canyon, they were the same species. This is an example of
A) mechanical isolation. B) temporal isolation. C) hybrid inviability. D) behavioral isolation. E) allopatric speciation.