Cell adhesion can often be blocked in vitro by treating cell…

Cell adhesion can often be blocked in vitro by treating cells with specific agents. Which of the following substances would be expected to interfere with cell adhesion mediated by selectins? Trypsin, which digests extracellular proteins EGTA, which binds (sequesters) Ca++ A peptide containing RGD Hyaluronidase, which digests hyaluronic acid

You are working on a laboratory and receive two tissue sampl…

You are working on a laboratory and receive two tissue samples. One from a patient with metastatic cancer and one with a healthy patient. The problem is, they are not labeled, but you have reagents to perform two specific tests on both samples. How do you expect the results of these tests would allow you to tell which one is the sample from the patient with metastatic cancer?

A group of scientists studying fertilized sea urchin eggs fi…

A group of scientists studying fertilized sea urchin eggs finds that a protein appeared and disappeared in these eggs. The degradation of this protein occurs about the same time as the cells finalized the first and second mitotic divisions. They are probably observing _____