Targeted therapy resistance

Oct 13, 2025 by talynt.org 49 views

As we delve into the world of biology, it's essential to understand the correct terminology used to describe various cellular processes. In this article, we'll explore the correct biological terms for each of the given descriptions.

1. The division of the cytoplasm after a cell nucleus has divided.

Cytokinesis

Cytokinesis is the process by which the cytoplasm divides after a cell nucleus has divided. This process is crucial in ensuring that the cytoplasm is evenly distributed between the two daughter cells. Cytokinesis can occur through various mechanisms, including cleavage and furrowing. In animal cells, cytokinesis typically occurs through a process called cleavage, where the cytoplasm is pinched inwards to form two daughter cells. In plant cells, cytokinesis occurs through a process called cell plate formation, where a cell plate is formed in the center of the cell and gradually moves towards the cell walls.

2. The point of crossing over between two adjacent chromosomes.

Chiasmata

Chiasmata are the points of crossing over between two adjacent chromosomes during meiosis. Crossing over is a process where segments of DNA are exchanged between homologous chromosomes, resulting in increased genetic diversity. Chiasmata are visible under a microscope as a visible connection between the two chromosomes. They are an essential part of the meiotic process, as they help to increase genetic diversity and ensure that the resulting gametes have a unique combination of genes.

3. The process by which a cell becomes specialized to perform a specific function.

Differentiation

Differentiation is the process by which a cell becomes specialized to perform a specific function. This process involves changes in gene expression, cell shape, and cellular organization. Differentiation is a critical aspect of development, as it allows cells to become specialized and perform specific functions. For example, during embryonic development, cells differentiate into various types of tissues, such as muscle, bone, and nerve tissue. Differentiation is also essential for the development of organs and systems in the body.

4. The process by which a cell divides into two daughter cells.

Mitosis

Mitosis is the process by which a cell divides into two daughter cells. This process involves the replication of DNA, followed by the division of the cell into two daughter cells. Mitosis is a critical aspect of growth and development, as it allows cells to divide and replace damaged or dying cells. Mitosis is also essential for the development of tissues and organs in the body.

5. The process by which a cell dies and is removed from the body.

Apoptosis

Apoptosis is the process by which a cell dies and is removed from the body. This process is essential for maintaining tissue homeostasis and preventing the development of cancer. Apoptosis involves a series of cellular changes, including DNA fragmentation, cell shrinkage, and membrane blebbing. Apoptosis is a critical aspect of development and tissue maintenance, as it helps to eliminate damaged or unwanted cells.

6. The process by which a cell becomes dormant and stops dividing.

Quiescence

Quiescence is the process by which a cell becomes dormant and stops dividing. This process involves changes in gene expression and cellular organization, resulting in a state of dormancy. Quiescence is a critical aspect of development and tissue maintenance, as it helps to prevent the overgrowth of cells and maintain tissue homeostasis. Quiescence is also essential for the development of tissues and organs in the body.

7. The process by which a cell becomes cancerous.

Carcinogenesis

Carcinogenesis is the process by which a cell becomes cancerous. This process involves changes in gene expression and cellular organization, resulting in uncontrolled cell growth and division. Carcinogenesis is a critical aspect of cancer development, as it involves the transformation of normal cells into cancerous cells. Carcinogenesis can occur through various mechanisms, including genetic mutations, epigenetic changes, and environmental factors.

8. The process by which a cell becomes resistant to chemotherapy.

Chemoresistance

Chemoresistance is the process by which a cell becomes resistant to chemotherapy. This process involves changes in gene expression and cellular organization, resulting in a reduced sensitivity to chemotherapy. Chemoresistance is a critical aspect of cancer treatment, as it can limit the effectiveness of chemotherapy and lead to treatment failure. Chemoresistance can occur through various mechanisms, including genetic mutations, epigenetic changes, and environmental factors.

9. The process by which a cell becomes resistant to targeted therapy.

Targeted therapy resistance

Targeted therapy resistance is the process by which a cell becomes resistant to targeted therapy. This process involves changes in gene expression and cellular organization, resulting in a reduced sensitivity to targeted therapy. Targeted therapy resistance is a critical aspect of cancer treatment, as it can limit the effectiveness of targeted therapy and lead to treatment failure. Targeted therapy resistance can occur through various mechanisms, including genetic mutations, epigenetic changes, and environmental factors.

10. The process by which a cell becomes resistant to immunotherapy.

Immunotherapy resistance

Immunotherapy resistance is the process by which a cell becomes resistant to immunotherapy. This process involves changes in gene expression and cellular organization, resulting in a reduced sensitivity to immunotherapy. Immunotherapy resistance is a critical aspect of cancer treatment, as it can limit the effectiveness of immunotherapy and lead to treatment failure. Immunotherapy resistance can occur through various mechanisms, including genetic mutations, epigenetic changes, and environmental factors.

As we delve into the world of biology, it's essential to have a solid understanding of various cellular processes. In this article, we'll answer some frequently asked questions about cellular biology, covering topics such as cell division, differentiation, and more.

Q: What is the difference between mitosis and meiosis?

A: Mitosis is the process by which a cell divides into two daughter cells, resulting in two cells with the same number of chromosomes as the parent cell. Meiosis, on the other hand, is the process by which a cell divides into four daughter cells, resulting in four cells with half the number of chromosomes as the parent cell. Meiosis is essential for the production of gametes (sperm and egg cells) and is a critical aspect of sexual reproduction.

Q: What is the purpose of cytokinesis?

A: Cytokinesis is the process by which the cytoplasm divides after a cell nucleus has divided. This process is essential for ensuring that the cytoplasm is evenly distributed between the two daughter cells. Cytokinesis can occur through various mechanisms, including cleavage and furrowing.

Q: What is the difference between apoptosis and necrosis?

A: Apoptosis is the process by which a cell dies and is removed from the body in a controlled manner. This process is essential for maintaining tissue homeostasis and preventing the development of cancer. Necrosis, on the other hand, is the process by which a cell dies due to injury or infection, resulting in the release of cellular contents and inflammation.

Q: What is the purpose of differentiation?

A: Differentiation is the process by which a cell becomes specialized to perform a specific function. This process involves changes in gene expression, cell shape, and cellular organization. Differentiation is a critical aspect of development, as it allows cells to become specialized and perform specific functions.

Q: What is the difference between stem cells and differentiated cells?

A: Stem cells are cells that have the ability to differentiate into multiple cell types. These cells are essential for development and tissue maintenance, as they can replace damaged or dying cells. Differentiated cells, on the other hand, are cells that have become specialized to perform a specific function. These cells are essential for the proper functioning of tissues and organs.

Q: What is the purpose of quiescence?

A: Quiescence is the process by which a cell becomes dormant and stops dividing. This process is essential for maintaining tissue homeostasis and preventing the overgrowth of cells. Quiescence is also essential for the development of tissues and organs in the body.

Q: What is the difference between carcinogenesis and chemoresistance?

A: Carcinogenesis is the process by which a cell becomes cancerous. This process involves changes in gene expression and cellular organization, resulting in uncontrolled cell growth and division. Chemoresistance, on the other hand, is the process by which a cell becomes resistant to chemotherapy. This process involves changes in gene expression and cellular organization, resulting in a reduced sensitivity to chemotherapy.

Q: What is the purpose of targeted therapy?

A: Targeted therapy is a type of cancer treatment that involves the use of drugs or other agents to target specific molecules or pathways involved in cancer development and progression. This type of therapy is essential for treating cancer, as it can help to slow or stop the growth of cancer cells.

Q: What is the difference between immunotherapy and targeted therapy?

A: Immunotherapy is a type of cancer treatment that involves the use of the immune system to fight cancer. This type of therapy can help to stimulate the immune system to attack cancer cells. Targeted therapy, on the other hand, is a type of cancer treatment that involves the use of drugs or other agents to target specific molecules or pathways involved in cancer development and progression.

Q: What is the purpose of cancer research?

A: Cancer research is the study of cancer and its causes, diagnosis, treatment, and prevention. This type of research is essential for advancing our understanding of cancer and developing new and effective treatments for this disease.

Q: What is the difference between a tumor and a cancer?

A: A tumor is an abnormal growth of cells that can be benign (non-cancerous) or malignant (cancerous). Cancer, on the other hand, is a disease characterized by the uncontrolled growth and spread of abnormal cells. While all cancers are tumors, not all tumors are cancers.

Q: What is the purpose of cancer screening?

A: Cancer screening is the process of using tests or exams to detect cancer in its early stages, when it is more treatable. This type of screening is essential for preventing cancer and improving cancer outcomes.

Q: What is the difference between a cancer cell and a normal cell?

A: A cancer cell is a cell that has become abnormal and has the ability to grow and divide uncontrollably. A normal cell, on the other hand, is a cell that has the ability to grow and divide in a controlled manner.

Q: What is the purpose of cancer treatment?

A: Cancer treatment is the process of using various therapies, such as surgery, chemotherapy, and radiation therapy, to treat cancer. This type of treatment is essential for improving cancer outcomes and saving lives.

In conclusion, understanding the correct biological terms and concepts is essential for advancing our knowledge of biology and medicine. By answering these frequently asked questions, we hope to provide a better understanding of various cellular processes and their importance in our daily lives.