AP BIOLOGY

CELL DIVISION

MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Occurs throughout an organism’s lifetime.
A
Meiosis
B
Mitosis
Explanation: 

Detailed explanation-1: -Mitosis occurs during development, creating more cells that allow an organism to grow, but it also takes place throughout the lifetime of an organism, as means to replace old cells with new ones.

Detailed explanation-2: -There are two types of normal cell division – mitosis and meiosis. Both types of cell division occur in eukaryotic organisms Mitosis begins in the fertilized egg (or zygote) stage and continues throughout the life of the organism in one way or another.

Detailed explanation-3: -Mitosis happens in all eukaryotic cells (plants, animals, and fungi). It is the process of cell renewal and growth in a plant, animal or fungus.

Detailed explanation-4: -Because mitosis takes place throughout your lifetime and in multiple organs, it occurs more often than meiosis, which is limited to the reproductive organs during gamete formation.

Detailed explanation-5: -Mitosis occurs in somatic cells throughout the life cycle, whereas meiosis occurs only in germ cells and only at some stages of life. Homologous chromosomes align with each other during meiosis but not mitosis. This alignment allows for crossing over, which also occurs only in meiosis.

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