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• Cancer cells do not respond normally to the body's control mechanism.
o They divide excessively and invade other tissues.o If left unchecked, they can kill the organism.
• Cancer cells do not exhibit contact inhibition
o If cultured, they continue to grow on top of each other when the total area of the petri dish has been covered o They may produce required external growth factor (or override factors) themselves or possess abnormal signal transduction sequences which falsely convey growth signals thereby bypassing normal growth checks.
• Cancer cells exhibit irregular growth sequences
o If growth of cancer cells does cease, it does so at random points of the cell cycle o Cancer cells can go on dividing indefinitely if they are given a continual supply of nutrients o Normal mammalian cells growing in culture only divide 20-50 times before they stop dividing.
Littoral and Benthic Zone Littoral Zone This is the shallow water zone, near the shore, where light penetrates to the bottom. Rooted plants can grow only in this region.
What are the respective functions of the separation of homologous chromosomes and of the separation of identical chromatids in meiosis? The separation of homologous chromosomes
Describe two pieces of evidence indicating that speciation does not always occur at the same rate. Some species of moths on the Hawaiian Islands appear to have evolved during t
recptors and effectors
Q. What is H shaped incision and what is it's purpose? This type of incision is especially useful for: The anterior maxilla or mandible. Accurately identified implant
Q. What are the organs that are part of the female reproductive system? The organs that constitute the female reproductive system are the ovaries, the uterus, the Fallopian tub
Enumerate the stages in trabecular bone surface remodeling The stages in trabecular bone surface remodeling are: 1. Quiescence - resting state of the bone surface. 2. Act
plz answer me how I arrange my topic with its order ?
How can the knowledge about fermentation explain the origin of muscle cramps and pains after intense physical exertion? A typical fermentation process because of oxygen scarcit
Q. How many cellular nuclei does the pollen tube of angiosperms have? What is ploidy of each of these nuclei? The pollen tube explicitly the mature male gametophyte of angiospe
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