THE CELL
CELL COMMUNICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The cells show characteristics of tumors.
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The cells were originally derived from an elderly organism.
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The cells are unable to form spindle microtubules
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The cells have altered series of cell cycle phases.
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Detailed explanation-1: -Researchers began a study of a cultured cell line. Their preliminary observations showed them that the cell line did not exhibit either density-dependent inhibition or anchorage dependence. What could they conclude right away? The cells show characteristics of tumors.
Detailed explanation-2: -Answer and Explanation: Tumor cells do not exhibit density-dependent inhibition. These cells are able to divide without control, usually because of a faulty cell cycle checkpoint and the inability to properly divide healthily.
Detailed explanation-3: -Early observations of a cultured cell line indicated that the cells did not exhibit either density-dependent inhibition or anchorage dependence.
Detailed explanation-4: -Which of the following conditions would prevent cell division due to density-dependent factors? Being completely surrounded by other cells.
Detailed explanation-5: -The G1 checkpoint, also known as the restriction point in mammalian cells and the start point in yeast, is the point at which the cell becomes committed to entering the cell cycle.