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Questions and Answers
Which process leads to an increase in genetic diversity in multicellular organisms?
Which process leads to an increase in genetic diversity in multicellular organisms?
- Cell division to create new organisms
- Cell division for growth, renewal, and repair (correct)
- Cell division to reduce the chromosome number by half
- Cell division for maintaining genetic stability
What is the primary function of cell division in unicellular organisms?
What is the primary function of cell division in unicellular organisms?
- To maintain genetic stability
- To repair tissue damage
- To create new organisms (correct)
- To reduce the chromosome number by half
Which term refers to a specific segment of DNA that contains a gene?
Which term refers to a specific segment of DNA that contains a gene?
- A type of protein associated with chromosomes
- A single chromosome within a cell
- Chromatin (correct)
- The complete set of an organism's genetic material
What best describes the term 'genome'?
What best describes the term 'genome'?
Which cellular structure is responsible for the condensation of DNA during cell division?
Which cellular structure is responsible for the condensation of DNA during cell division?
What is the main purpose of reducing the chromosome number by half during cell division?
What is the main purpose of reducing the chromosome number by half during cell division?
What is the structure made of microtubules that controls chromosome movement during mitosis?
What is the structure made of microtubules that controls chromosome movement during mitosis?
During prometaphase, what extends from each centrosome?
During prometaphase, what extends from each centrosome?
What protein complex is associated with the centromeres of sister chromatids?
What protein complex is associated with the centromeres of sister chromatids?
What enzyme cleaves the cohesins during anaphase?
What enzyme cleaves the cohesins during anaphase?
What mechanism involves the depolymerization of microtubules at kinetochore ends after motor proteins have passed?
What mechanism involves the depolymerization of microtubules at kinetochore ends after motor proteins have passed?
What occurs during metaphase in terms of chromosome alignment?
What occurs during metaphase in terms of chromosome alignment?
What is the name of the process by which prokaryotic cells, such as bacteria, reproduce?
What is the name of the process by which prokaryotic cells, such as bacteria, reproduce?
During binary fission in bacteria, where does replication of the chromosome begin?
During binary fission in bacteria, where does replication of the chromosome begin?
What is the role of the plasma membrane during binary fission in bacteria?
What is the role of the plasma membrane during binary fission in bacteria?
Why are bacterial chromosome movement and location active areas of research?
Why are bacterial chromosome movement and location active areas of research?
Which type of eukaryotic cell division likely evolved from binary fission based on evolutionary history?
Which type of eukaryotic cell division likely evolved from binary fission based on evolutionary history?
What could be considered an intermediate type of cell division between binary fission and mitosis in unicellular eukaryotes?
What could be considered an intermediate type of cell division between binary fission and mitosis in unicellular eukaryotes?
Which checkpoint ensures all chromosomes are attached to the spindle before proceeding with mitosis?
Which checkpoint ensures all chromosomes are attached to the spindle before proceeding with mitosis?
What is a characteristic difference between cancer cells and normal cells in terms of cell cycle control?
What is a characteristic difference between cancer cells and normal cells in terms of cell cycle control?
Which statement accurately describes the role of cyclins and cyclin-dependent kinases in the cell cycle?
Which statement accurately describes the role of cyclins and cyclin-dependent kinases in the cell cycle?
What is the primary function of the G1 checkpoint in the cell cycle?
What is the primary function of the G1 checkpoint in the cell cycle?
In the context of cancer cells and normal cells, what is a key difference related to the requirement for growth factors?
In the context of cancer cells and normal cells, what is a key difference related to the requirement for growth factors?
How do cancer cells contrast with normal cells regarding cell division speed?
How do cancer cells contrast with normal cells regarding cell division speed?
Which of the following regulatory proteins fluctuates in concentration during the cell cycle?
Which of the following regulatory proteins fluctuates in concentration during the cell cycle?
What type of cell cycle checkpoint is the G1 checkpoint considered to be?
What type of cell cycle checkpoint is the G1 checkpoint considered to be?
What occurs when a cell does not receive a go-ahead signal at the G1 checkpoint?
What occurs when a cell does not receive a go-ahead signal at the G1 checkpoint?
Which of the following is true regarding cancer cells' response to growth factors?
Which of the following is true regarding cancer cells' response to growth factors?
What is density-dependent inhibition in cell division?
What is density-dependent inhibition in cell division?
Which proteins are involved in directing the sequential events of the cell cycle?
Which proteins are involved in directing the sequential events of the cell cycle?
What is the function of MPF (maturation-promoting factor) in the cell cycle?
What is the function of MPF (maturation-promoting factor) in the cell cycle?
What is one reason why most benign tumors do not cause serious problems?
What is one reason why most benign tumors do not cause serious problems?
What is one key difference between density-dependent inhibition and anchorage dependence?
What is one key difference between density-dependent inhibition and anchorage dependence?
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