During Meiosis, a Defect Occurs in a Cell That Results

question 43

Multiple Choice

During meiosis, a defect occurs in a cell that results in the failure of spindle microtubules binding at the kinetochores. Which of the following statements describes the most likely result of such a defect?

• A) New microtubules with more effective binding capabilities to kinetochores will be synthesized to compensate for the defect.
• B) Excessive cell divisions will occur resulting in cancerous tumors and an increase in the chromosome numbers known as polyploidy.
• C) The defect will be bypassed in order to ensure normal chromosome distribution in the new cells.
• D) The resulting cells will not receive the correct number of chromosomes in the gametes, a condition known as aneuploidy.

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Definitions:

ADH Secretion

The release of antidiuretic hormone, which helps regulate water balance in the body by controlling the amount of water the kidneys reabsorb.

Calcium Balance

The regulation of calcium levels in the body, critical for bone health and the functioning of the nervous and muscular systems.

Parathyroid Hormone

A hormone produced by the parathyroid glands that regulates calcium levels in the blood.

Vitamin D

A fat-soluble vitamin essential for calcium absorption in the body and bone health.