AP Gene Control 2019

When you click Submit (at the bottom of this web page) it will save your work on the server for me.

You might want to actually write your answers in Word (so you can spell check them) and then cut-and-paste into the boxes. That way, if the computer misplaces your work you can just re-paste the answers.

DO NOT JUST LOOK FOR THE ANSWERS…
YOU’LL MISS LOTS OF IMPORTANT STUFF.
THE QUESTIONS ARE JUST TO KEEP YOU “HONEST.”

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Answer the questions as best you can. The boxes will expand as you type if you need more space. (Don't worry if it is a one word answer. The box size is standard.)

The "form handler" software doesn't like "blanks."

So, if you don't have an answer, leave the "-" or "NA" or -required- in the box.

Last Name:   First Name:

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The following animations and simulations explain about operons and then eukaryotic gene expression.

Operons:
There are two types of operons, which are illustrated with the lac and trp operons.
Go through all the animations and then answer the questions. Take notes, since we will go through this VERY quickly in class.

Khan Academy

https://www.khanacademy.org/science/biology/gene-regulation/gene-regulation-in-bacteria/v/operons-and-gene-regulation-in-bacteria

Bozeman Biology

http://www.bozemanscience.com/the-operon

Virtual Cell

http://vcell.ndsu.edu/animations/lacOperon/index.htm



From the following web site go through the animations:
 http://glencoe.mcgraw-hill.com/sites/0003292010/student_view0/chapter16/animations_and_videos.html

Some are partial copies of others. The list is alphabetical, not content sequence.
Make sure you go thorugh their version of the Lac Operon and the Tryptophan Repressor before you answer the questions. Combination of Switches and regulatory proteins may help too.

Then at a minimum go through:Control of Gene Expression in Eukaryotes,  Chromatin Remodeling,  Transcription factors and Enhancers,  and Exon Shuffling. You will also benefit from How Intracellular Receptors Regulate Gene Transcription

Q1-What is a repressable enzyme? What is an inducable enzyme? In your own words explain how they BOTH work.


Q2-Why would some pathways be repressable and other inducable? What generalization can you make about which pathways are repressable and which inducable?


Q3-Why did you have to remind yourself about allosteric enzymes in order to understand the lac and trp operons?




 This form is hosted on Dr. Gottfried's account. Technical questions should be referred to drg.atm@gmail.com