What prion conformation may result in a prion-related infection?
A. PrPSc
B. PrPC
C. Both can cause disease
A
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If a cell has accumulated DNA damage, it is unlikely to _____
A) pass the G2 checkpoint B) activate DNA repair mechanisms C) enter G1 from mitosis D) synthesize cyclin-dependent kinases
Repeated sequences make DNA sequencing challenging for of all of the following reasons EXCEPT:
A. repeated sequences are typically longer than the short sequences obtained by automated sequencing. B. there is no easy way to determine how many copies of the same repeat are present within one chromosome. C. short repeats may fold back upon themselves to form a double-stranded structure that is not easily sequenced. D. the long repeats often have mutations that are not easily sequenced. E. All of the answer options are challenges to DNA sequencing due to repeated sequences.
A variety of proteins link actin to membranes. A ________ protein is used to link actin to the ________ membrane.
A) linker; plasma B) spectrin; ER C) ankyrin; lysosome D) band 4.1; basal E) band 4.1; mucous
CO2 and H2O will not form glucose on their own because ____.
A. CO2 does not contain sufficient energy B. H2O does not contain sufficient energy C. neither CO2 nor H2O contain sufficient energy D. the concentration of CO2 is too low in the atmosphere E. the bonds of CO2 and H2O are too stable to be broken without an input of energy