Biology Answers

describe an example of immunology from your life experiences

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nd diagram: Show how the leading strand (at least 8 nucleotides long) undergoes

replication. Make sure to show specific nucleotides (show at least 20 nucleotides on

the parent of the complementary leading strand).

● Label the polarity of both strands.

● Indicate direction of replication fork and direction of leading strand replication.

● Include all enzymes involved in the replication of this leading strand. Make sure to

indicate in your drawing where the enzyme(s) would be working on the DNA

molecule.

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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?