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.

Biology & Microbiology

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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?

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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

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In the human skeleton, the ________ is a ball-and-socket joint

Fill in the blank(s) with correct word

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