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1
st diagram: Show your original double stranded DNA molecule with specific
nucleotides (show at least 20 nucleotides per strand).
● Include the necessary enzyme(s) required to initiate replication.
● Make sure you indicate in your drawing where the enzyme(s) would be working
on the DNA molecule.
● Label the polarity of both strands.
Using a series of labeled diagrams, show how a double stranded DNA molecule
would undergo replication. No computer generated diagrams please!
If an error occurred during DNA replication, what enzyme would be responsible for
correcting this error? How does it go about doing so?
From a hospital patient afflicted with a mysterious illness, you isolate and culture and
then purify DNA from the culture. You find that the DNA sample obtained from the
culture contains two different kinds of DNA; one was labeled as double-stranded
human DNA and the other was labeled as single stranded viral DNA. However, a
mix-up occurred and the labels were accidentally removed from the test tubes. How
can you figure out which test tube contains which DNA, if you only have access to
the nucleotides in each sample?
There are three histologic specimens of cartilaginous tissue. Two of them are
stained with hematoxylin-eosin, and one histologic specimen is stained with
orcein. What fibres and in what type of cartilaginous tissue can be determined
by such dyes? What functional properties of the cartilaginous tissue do they
cause?
Is photosynthesis light-dependent or light-independent?
Discuss the epidemiology of a virus that has caused an impact on human health in recent years (past 3 years), and describe the worldwide effects of this virus.
What do you think is the importance of the cyclic electron flow to the process of photosynthesis and the cell?
Briefly outline a cell signalling mechanism. Use a named signalling molecule along with its receptor type in order to illustrate your answer?
Compare and contrast the structure and function of collagens to the other abundant extracellular matrix components.
