Describe the roles of the following enzymes during DNA replication: ligase, single-stranded binding proteins (SSBs),
DNA polymerase III, primase, DNA helicase.
What will be an ideal response?
ANSWER: DNA helicase binds to an origin of replication and unwinds the two DNA strands which are
then bound by SSBs to keep them apart. Primase uses DNA as a template to make an RNA
primer that provides a 3’ hydroxyl group for DNA polymerase III, which extends the RNA
primer with DNA nucleotides. Once the RNA primers have been removed and replaced with
DNA, any gaps in the sugar-phosphate backbone are connected using ligase.
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The atomic mass (mass number) of an atom is
determined by the combined masses of its a. neutrons and protons. b. neutrons and electrons. c. protons and electrons. d. protons, neutrons, and electrons. e. neutrons, nucleus, and electrons
Describe how the previous assumption regarding the development of sexual identity and the treatment for ambiguous
genitalia has changed in recent ye What will be an ideal response?
Cloning an embryo to derive stem cells for the treatment of disease is known as ________
A) gene cloning B) genomics C) regenerative medicine D) reproductive cloning E) therapeutic cloning
In the human skeleton, the ________ is a ball-and-socket joint
Fill in the blank(s) with correct word