CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is carried out in all tissues theat require cell replacement
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It occurs only in cells in the reproductive structures of an organism
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It happens in all of the tissues except the brain and spinal cord
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It is the first stage of mitosis
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Detailed explanation-1: -Expert-Verified Answer. Meiosis can be best described as the event which occurs only in the cells which are the part of reproductive structures in an organism. Thus, the correct option is B.
Detailed explanation-2: -Only sexually reproductive organisms utilize meiosis. The role of the process is to produce sex cells and to repair genetic defects in germ line cells (the sex cells). Both sexual and asexual organisms go through the process of mitosis.
Detailed explanation-3: -Answer and Explanation: The statement that best describes meiosis is C. separation of sister chromatids.
Detailed explanation-4: -Meiosis occurs in the primordial germ cells, cells specified for sexual reproduction and separate from the body’s normal somatic cells. In preparation for meiosis, a germ cell goes through interphase, during which the entire cell (including the genetic material contained in the nucleus) undergoes replication.
Detailed explanation-5: -Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.