Https://www.ncbi.nlm.nih.gov/pubmed/8300084
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<span>The correct answer is C. The Golgi apparatus. This is the packaging center of the cell. It is responsible for receiving cell products and transporting them within vesicles either within the cell or to surrounding cells. Lysosomes are the trash collectors of the cell, responsible for processing wiaste. The cell membrane makes up the cell's enclosure and selectively allows material into and out of the cell. The endoplasmic reticulum contains ribosomes and is responsible for assisting in protein production.</span>
D is your answer
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Trisomy 21, as illustrated by the karyotype, is caused by nondisjunction. This occurs when chromosomes do not separate properly during meiosis.
Answer is D) nondisjunction
