Describe why cancer cells are more susceptible to chemotherapies and radiation therapies than normal cells
What will be an ideal response?
Cancer cells suffer from mutations that affect DNA repair enzymes and are constantly proliferating resulting in a much higher mutation accumulation rate that could lead to apoptotic response or necrosis. Normal cells are nonproliferating and have functional DNA repair mechanisms that prevent their apoptotic response.
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Predict what would happen to the daughter cells if the G1 phase of the parent cell is shortened?
A. The cells would be smaller than normal. B. The cells would be missing chromosomes. C. The cells would not undergo cytokinesis. D. The cells would be larger than normal.
What do you see if the red and blue sponges are the same species?
An unusual red sponge is discovered near a deep-sea vent. You want to determine if this is a new species of sponge, so you separate the cells for further study. A new lab assistant accidentally adds cells from a blue sponge to your preparation while you are at lunch. When you return, you find that the sponge cells have reaggregated into a multicellular organism. A. one sponge with a red side and a blue side B. one blue sponge and one red sponge C. one sponge with blue and red randomly distributed D. one purple sponge (mix of red and blue colors) E. one sponge with alternating red and blue layers of cells
Stem cells show promise for mending damage
due to a. spinal cord injuries. b. Parkinson's disease. c. muscular dystrophy. d. heart attacks. e. all of these.
All populations of all species in a specified area __________
Fill in the blank(s) with the appropriate word(s).