Cell Biology Answers

answer to restoring the American chestnut linkage map

Suppose, you are doing an experiment with cancer cells and normal cells. You notice that "protein y" is much higher in cancer cells. Which of the following can help you determine whether the difference is due to a change in transcription or translation?

a) Analysis of proteins with similar amino acids to try to identify alternative splicing.
b) Adding an antibiotic that is known to prevent eukaryotic translation.
c) Remove the promoter for gene y.
d) Analysis of the mRNA levels for "y" in cancer vs. normal cells.
e) Remove the enhancer for gene y.

An electron micrograph of a cell shows the cytoplasm packed with rough er membranes, a golgi complex and mitochondria. What activities might this cell concentrate be? Why would large nuubers of mitochondria be required for these activities?

Is the structure of the cell wall related to its function? If so, how?

How do the same enzymes have distinct optimal values of pH and temperature depending on the source organism?

a cell divides every 20 minutes how many cells would be produced from one original cell at the end of two hours

Although transport proteins can be isolated from membranes and purified, the functional properties of these proteins can be studies only when they are associated with a membrane.
Most cellular membranes contain many different types of transport proteins but a relatively low concentration of any particular one, making functional studies of a single protein difficult
1. To facilitate such studies, researchers use two approaches for enriching a transport protein of interest so that it predominates the membrane. Briefly describe these two methods

what type of diseases you may get if you won't lndude vitamins in your diet?

Is oxysome another name for FoF1 particle?