Which of the following processes is not necessary for highly accurate mitotic cell division to occur in

eukaryotic cells?



a. cell cycle regulation
b. formation of the mitotic spindle
c. two rounds of DNA replication
d. condensation of genetic material into chromosomes
e. segregation of sister chromatids into separate cells


C

Biology & Microbiology

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A hypothetical “microbullet” shot through a

phospholipid bilayer would pass the components in which order? a. tail >>> tail >>> head >>> head b. head >>> tail >>> head >>> tail c. tail >>> head >>> head >>> tail d. head >>> tail >>> tail >>> head e. head >>> head >>> tail >>> tail

Biology & Microbiology

The greatest number of ATP molecules is

produced in a. glycolysis. b. alcoholic fermentation. c. anaerobic electron transfer. d. electron transfer phosphorylation. e. the Krebs cycle.

Biology & Microbiology

After sexual reproduction in a moss, the ____ grows out of the gametophyte

a. bud b. calyptra c. protonema d. sporophyte e. archegonium

Biology & Microbiology

Which of the following is TRUE with regard to the sliding filament mechanism of muscle contraction?

A) When a muscle fiber is contracting, the thin fibers are connected to the thick fibers. B) The energy for contraction comes from the breakdown of actin into myosin. C) The muscle relaxes when calcium ions are released into the fluid surrounding the thick and thin filaments. D) When actin pushes the Z discs farther apart, the muscle contracts.

Biology & Microbiology