After removal of the RNA primers and replacement with DNA nucleotides, the single-stranded nick adjacent to Okazaki fragments is filled in through a reaction that involves which enzyme?

A) DNA primase
B) SSB protein
C) RNA polymerase
D) DNA ligase
E) DNA helicase


D

Biology & Microbiology

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If you had a garden full of a variety of plants, you might notice that the only pollinators of a

plant called trumpet vines are hummingbirds. Can you anticipate anything about the appearance of these flowers? What is the advantage of having a single pollinator for your plant species?

What will be an ideal response?

Biology & Microbiology

Which part of a hemoglobin molecule binds to a molecule of O2?  

A.  the hydrophobic pocket between two a chains B.  the copper atom wedged between an a and a b globin chain C.  the iron atom in the center of a heme group D.  the surface of a b globin chain E.  the surface of an a globin chain

Biology & Microbiology

Refer to Figure 7-2. The line on the graph labeled C represents the:


a. activation energy with an enzyme.
b. activation energy without an enzyme.
c. change in free energy.
d. change in entropy.
e. change in enthalpy.

Biology & Microbiology

Patients with Creutzfeldt-Jacob disease live ________ post diagnosis.

A. 10 to 20 years B. greater than 25 years C. 5 to 10 years D. less than 1 year E. 1 to 5 years

Biology & Microbiology