17 Questions
During the G2/M checkpoint, what is the main function of the activated MPF?
Initiate cell division
Which of the following is a common reason for cells to be unable to progress past the G2/M checkpoint?
Presence of damaged DNA
What is the role of mitogens in the cell cycle process?
Signal cells to divide
Which checkpoint ensures that all chromosomes are aligned and attached to the mitotic spindle before proceeding to anaphase?
Spindle checkpoint
What is the main function of mitosis in the cell cycle?
Produce genetically identical daughter cells
In a eukaryotic cell, what initiates progression past the G1/S checkpoint?
Availability of growth factors
What is the primary function of mitogens in the regulation of cell proliferation?
To stimulate cell growth and division by activating Cdks
During which phase of the cell cycle is the G2/M checkpoint primarily active?
G2 phase
What is the primary function of the spindle checkpoint during mitosis?
To ensure proper chromosome alignment and segregation
What is the unique characteristic of meiosis that distinguishes it from mitosis?
Meiosis involves the production of two haploid daughter cells
Which of the following is NOT a characteristic of cells that do not divide at all once mature?
Epithelial linings of the intestine
Which factor specifically drives the cell cycle and leads to proliferation?
Mitogens
Which checkpoint regulates the entry into the mitotic phase and ensures accurate chromosome segregation?
Spindle checkpoint
Which checkpoint regulates the entry into the DNA synthesis phase during the cell cycle?
G1/S checkpoint
Which process produces haploid cells for sexual reproduction?
Meiosis
Which family of enzymes plays a crucial role in the proteolytic cascade during apoptosis?
Caspase family
Which phase of the cell cycle is associated with the G2/M checkpoint?
M phase
Test your knowledge on cell division processes such as meiosis, sexual reproduction, haploidy, diploidy, and the differences between somatic and germ cells. Explore topics like synapsis, aneuploidy, control of the cell cycle with cyclins and cyclin-dependent kinases (Cdks), and cell cycle checkpoints. Learn about cancer development, apoptosis, and factors affecting cell number and size.
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