Lack of differentiation of cell is known as
**Core Concept**
Cell differentiation is the process by which a cell becomes specialized to perform a specific function. This process involves changes in gene expression, cell morphology, and cellular behavior. Lack of differentiation of cells is a hallmark of cancer, where cells lose their normal cellular behavior and grow uncontrollably.
**Why the Correct Answer is Right**
The correct answer is related to the concept of cancer stem cells and tumor progression. Cancer stem cells are a subpopulation of cancer cells that have the ability to self-renew and differentiate into various cell types within the tumor. These cells are thought to be responsible for the initiation and maintenance of cancer. The lack of differentiation of cells is a key feature of cancer stem cells, allowing them to evade the immune system and resist chemotherapy. This concept is supported by the presence of cancer stem cells in various types of cancer, including leukemia, breast cancer, and glioblastoma.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not relate to the concept of cell differentiation. While it may be a term used in biology, it is not directly related to the lack of differentiation of cells.
**Option B:** This option is incorrect because it refers to a different concept in cell biology. While it may be related to cell growth or division, it is not directly related to the lack of differentiation of cells.
**Option C:** This option is incorrect because it refers to a different concept in cell biology. While it may be related to cell signaling or gene expression, it is not directly related to the lack of differentiation of cells.
**Clinical Pearl / High-Yield Fact**
The concept of cancer stem cells highlights the importance of targeting these cells in cancer therapy. Current treatments, such as chemotherapy and radiation, are often ineffective in eliminating cancer stem cells, leading to cancer recurrence. New treatments that target cancer stem cells are being developed and tested in clinical trials.
**Correct Answer:** A. Anaplasia.