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Multiple Choice
Which of the following is a function only of mitosis?
A
Genetic variation
B
Production of gametes
C
Growth and repair of tissues
D
Reduction of chromosome number
Verified step by step guidance
1
Understand the purpose of mitosis: Mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
Identify the functions of mitosis: Mitosis is primarily responsible for growth and repair of tissues, as it produces identical cells to replace damaged or dead cells.
Differentiate mitosis from meiosis: Meiosis, not mitosis, is responsible for genetic variation and the production of gametes (sperm and eggs), as it reduces the chromosome number by half and introduces genetic diversity.
Recognize that mitosis maintains chromosome number: Unlike meiosis, mitosis does not reduce the chromosome number; it maintains the same chromosome number in the daughter cells as in the parent cell.
Conclude that the unique function of mitosis is growth and repair of tissues, as it ensures that new cells are identical to the original cells, maintaining tissue function and integrity.