The ends of linear chromosomes that maintain chromosome integrity are called
A. kinetochores
B. kinetin
C. thymine dimers
D. telomeres
E. the replisome
Answer: D
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The ?-jelly roll of the Lpt system functions to
A. help translocate assembled LPS across the outer membrane of the bacterial cell. B. help attach the O-antigen to core oligosaccharide moieties during synthesis of LPS. C. help anchor the newly positioned LPS on the bacterial cell surface. D. help hide lipid A from the hydrophilic periplasm during LPS transport to the membrane.
DNA primase
A. creates a short RNA primer that is complementary to a DNA template. B. creates a short DNA template that is complementary to an RNA primer. C. creates a short RNA primer that is complementary to an RNA template. D. creates a short DNA primer that is complementary to a DNA template. E. creates a short DNA primer that is complementary to an RNA template.
Which region of the ? phage genome enables the linear chromosome to circularize when it enters a host cell?
A) cohesive (cos) site B) IS10 C) early operators D) integrase (int) gene E) excisionase (xis) gene
Animals that consume Brazil nuts derive nutrition mostly from tissue whose nuclei have how many chromosomes?
A) 17 B) 34 C) 51 D) 68