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In studying tumor cells, you isolate gene X that causes protein Q to become tyrosine phosphorylated (the addition of a phosphate group to a tyrosine). You isolate a homozygous null mutation in gene X and now find that protein Q is not tyrosine phosphorylated. Furthermore, the tumor cells are now behaving more like normal cells. That is, when protein Q is phosphorylated, it induces the cells to become more cancer-like.If you concluded that Gene X is necessary, describe an experiment to test whether Gene X is sufficient. If you concluded that Gene X is sufficient, describe an experiment to test whether Gene X is necessary.
Design a greenhouse experiment to test for intraspecific competition within a population of herbaceous plants. Specify the species of plant, the volume
An individual has the genotype shown below. Gene loci (A) and (B) are 22cM (map units) apart. Indicate all the possible proportions of expected offspring when a testcross is made with the below individual.
When does the synaptonemal complex disappear?
You discover a molecule of glycogen that consists of approximately 1000 glucose residues and has branches every 10 residues. Determine the number of possible non reducing ends there can be.
define a well-controlled experiment to determine if the rise in internal free calcium observed in the cytoplasm of unfertilized sea urchin eggs in the presence of A23187 is due to in flux of calcium from seawater. Include experimental treatments, ..
Explain at least one historical extinction with parallels to the extinction threats facing the bog turtle. When allosteric effector X binds to enzyme #1, enzyme stops working. However, the speed of reaction can be altered by adjusting the concentrati..
How does polarity affect the diffusion of a substance? If the substance is more polar, then it diffuses faster through the plasma membrane, correct? Under what circumstances might it be useful to separate proteins in the absence of SDS-PAGE?
Sinorhizobium meliloti can be protected from osmotic stress by the presence of certain disaccharides. Dan Orr found that sucrose does a fine job as an osmoprotectant for our strain of S. meliloti,
which statement about spontaneous generation is FALSE.
Why does traveling up a mountain take you through biomes similar to those you would encounter traveling from the south to the north (in the northern hemisphere)?
At Southern Oregon University, Dr Christine Oswald works as a Physiologist. She studies the Anatomy and Physiology of small mammals
Which of the following is most apt to increase body temperature?
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