Which of the following citric acid cycle enzymes catalyzes substrate-level phosphorylation?
A) isocitrate dehydrogenase
B) ?-ketoglutarate dehydrogenase
C) succinyl CoA synthetase
D) succinate dehydrogenase
E) malate dehydrogenase
Answer: C
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Indicate the order of the point mutations in the rII region.
Shown below are the maps of a series of rII- deletion strains (1–5). The deleted region is indicated as (......) and the intact region as ______. Note that strain 5 carries two different deletions.
1 ___________(...........)_______________
2 _________________(...........)_________
3 (.....................)_____________________
4 ________________________(................)
5 _____(..........)________________(.........)
rII- phage strains A-E have point mutations in the rII region. E.coli K(?) cells are coinfected with one phage that has a deletion and one phage that has a point mutation. The presence of wild-type progeny phage is assessed by the presence (+) or absence (o) of plaques.
A) CADBE
B) DEBAC
C) BADCE
D) ABDEC
E) CEADB
Additional question (answer with TRUE or FALSE) :
The test described here depends on recombination.
Adaptive radiation is demonstrated by ____
a. the dinosaurs going extinct b. coelecanths remaining similar over hundreds of millions of years c. the evolution of mammals after dinosaurs went extinct d. rats and resistance to warfarin e. warbler body mass and survival
How will bovine serum albumin (BSA) be used in the assya in this lab exercise?
A) To assess the amount of lipid in different solutions using spectrophotometry B) To react with peptide bonds in the protein solution C) To react with amino acids in the protein solution D) To establish a standard curve for the estimation of protein concentration
Mosquitoes are
A) predators. B) parasites. C) hosts. D) mutualists. E) prey.