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Todd N.

Cellular Groth and Development

QuestionAnswer
What are the two main types of cell division? The two main types of cell division are mitosis, which produces genetically identical cells, and meiosis, which produces gametes with half the genetic material.
What is the main purpose of cell division in multicellular organisms? The main purpose of cell division is to enable growth, repair, and reproduction of cells, maintaining tissue health and development.
During which phase of the cell cycle does DNA replication occur? DNA replication occurs during the S phase of the interphase in the cell cycle.
What is the significance of the G2 phase in the cell cycle? The G2 phase is a period of growth and preparation for mitosis, where the cell checks for DNA errors and synthesizes necessary proteins.
What is the role of the spindle fibers during mitosis? Spindle fibers attach to chromosomes and help separate sister chromatids to opposite poles of the cell during mitosis.
What is apoptosis, and why is it important in cell development? Apoptosis is programmed cell death, which helps eliminate damaged or unnecessary cells, shaping tissues and maintaining health.
How does cell size affect cell growth and division? As a cell grows, its volume increases faster than its surface area, which can limit nutrient uptake and waste removal, triggering cell division to maintain efficiency.
Why is cell differentiation important during development? Cell differentiation allows cells to become specialized for specific functions, enabling the formation of different tissues and organs.
What is the function of cyclins in the cell cycle? : Cyclins regulate the progression of cells through the cell cycle by activating specific enzymes called cyclin-dependent kinases (CDKs).
What is the difference between benign and malignant tumors? Benign tumors are non-cancerous and do not spread, while malignant tumors are cancerous and can invade nearby tissues and metastasize.
Created by: todd.h.nansel
 

 



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