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In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cells
  • a)
    There is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumours
  • b)
    Controlled cell division and overproduction of genetic material occur
  • c)
    RNA is mutated and produced in less amount
  • d)
    DNA is mutated and produced in less amount
Correct answer is option 'A'. Can you explain this answer?
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In human body, the cell growth and differentiation are highly controll...
In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cells there is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumours.
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In human body, the cell growth and differentiation are highly controll...
There is breakdown of regulatory mechanisms leading to formation of benign and malignant tumours.

The growth and differentiation of cells in the human body are tightly controlled and regulated processes. These processes ensure that cells divide and mature in a controlled manner, leading to the formation of healthy tissues and organs. However, in the case of cancer cells, there is a breakdown of these regulatory mechanisms, leading to the formation of benign and malignant tumors.

The uncontrolled growth and division of cells is one of the hallmarks of cancer. This uncontrolled cell division occurs due to the loss of regulation over the cell cycle, which normally ensures that cells only divide when necessary and in a controlled manner. In cancer cells, this regulation is disrupted, leading to continuous and uncontrolled cell division.

The loss of regulation in cancer cells can be attributed to various factors, including mutations in genes that are involved in cell cycle control. These mutations can occur due to various factors, such as exposure to carcinogens, genetic predisposition, or errors during DNA replication. Mutations in genes such as tumor suppressor genes and oncogenes can disrupt the normal cell cycle control mechanisms and allow cells to divide uncontrollably.

Additionally, cancer cells can also evade programmed cell death, or apoptosis, which is a natural process that eliminates damaged or abnormal cells. Normally, if a cell has accumulated too many mutations or is no longer functioning properly, it undergoes apoptosis. However, cancer cells can acquire mutations that allow them to evade apoptosis, leading to their survival and continued growth.

The loss of regulation in cancer cells also leads to the formation of genetic instability. This means that cancer cells can accumulate additional mutations at a higher rate compared to normal cells. These mutations can further disrupt regulatory mechanisms and contribute to the progression of the tumor.

In summary, the breakdown of regulatory mechanisms in cancer cells leads to the formation of benign and malignant tumors. This is characterized by uncontrolled cell division, evasion of apoptosis, and genetic instability. Understanding these mechanisms is crucial in developing effective strategies for cancer prevention, diagnosis, and treatment.
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In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cellsa)There is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumoursb)Controlled cell division and overproduction of genetic material occurc)RNA is mutated and produced in less amountd)DNA is mutated and produced in less amountCorrect answer is option 'A'. Can you explain this answer?
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In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cellsa)There is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumoursb)Controlled cell division and overproduction of genetic material occurc)RNA is mutated and produced in less amountd)DNA is mutated and produced in less amountCorrect answer is option 'A'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cellsa)There is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumoursb)Controlled cell division and overproduction of genetic material occurc)RNA is mutated and produced in less amountd)DNA is mutated and produced in less amountCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cellsa)There is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumoursb)Controlled cell division and overproduction of genetic material occurc)RNA is mutated and produced in less amountd)DNA is mutated and produced in less amountCorrect answer is option 'A'. Can you explain this answer?.
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