Describe the roles of the following enzymes during DNA replication: ligase, single-stranded binding
protein (SSB), DNA polymerase III, primase, DNA helicase.
What will be an ideal response?
DNA helicase binds to an origin of replication and unwinds the two DNA strands which are then
bound by SSB to keep them apart. Primase uses the DNA as a template to make an RNA primer that
serves as a 3’ end 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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In the axoneme, dynein sidearms are anchored on
A) B tubules. B) A tubules. C) central pair tubules. D) radial spokes. E) interdoublet nexin.
In the mammalian biological clock, the “master clock” is located in the pineal gland
____________________ Indicate whether the statement is true or false.
Compare and contrast the structure and function of ion channel-linked receptors, G protein-linked receptors, and
enzyme-linked receptors. In general, how do they differ from intracellular receptors? What will be an ideal response?
Pattern formation includes signaling between cells, changes in cell shape, and cell apoptosis
_________________ Indicate whether the statement is true or false.