Question

52 Unit 1 The Body as a Whole 7. The pathologist looked at the tissue and noticed that the nuclei of many cells were in 8. Some cells were in the stage of cell division called prophase. 9. Dr. C sent a sample to a laboratory that specialized in identifying alterations in gene structure 10. The technicians in this laboratory identified a change in the sequence of a specific gene called the process of dividing. This division process is called The DNA was condensed into structures called These alterations are called the BRCA-1 gene. In place of an A nucleotide, there was the nucleotide that normally pairs wth cytosine (C). This nucleotide is abbreviated as_ III. SHORT ESSAYS 1. Compare and contrast active transport and diffusion of water-soluble substances. List at least one similarity and at least one difference. 2. You are in the hospital for a minor operation, and the technician is hooking you up to an IV. He knows you are a nursing student and jokingly asks if you would like a hypertonic, hypotonic,or isotonic solution to be placed in your IV. Which solution would you pick? Explain your answer 3. List the four stages of mitosis, and briefly describe each.

Answer 1