Q1. Rub the index fingers gently over a piece of very coarse sandpaper a few times and rate its coarseness on a scale from 1 (very soft) to 7 (very coarse). After a minute or two, rub the same finger over the paper and again rate its coarseness. Did your […]

Combinatorial regulation of gene expression suggests that DNA sequences bound by particular transcription factors might be mixed and matched in different combinations to provide different specificities for regulating downstream genes. Using three different sequence elements, how many combinations of 1, 2 or 3 elements can be envisaged? (Assume that their […]

I was given the following websites to look at to find information and need help answering the following questions. I admit I am not a Biology major and this all seems foreign to me. I have read the the information and suppose I am just looking for “specific quotes” but […]

Q1. Suppose you are the lead scientist in a cytology lab, studying active transport and “cell eating.” You have placed a radioactive marker on a bit of food that was taken into the cell through endocytosis. Trace the pathway this particle would probably take while moving from outside the cell […]