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Question
multicellular organisms use cell division and mitosis for growth, maintenance, and repair of cells and tissues. there are few cells in the body that do not undergo mitosis; most somatic cells divide regularly, some more than others. single - celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. consider the model of the cell cycle. which details from the model best support the argument that cell division promotes genetic continuity?
a mitosis and cytokinesis
b dna restriction point and inclusion of g₀
c checkpoints throughout and replication during mitosis
d the template dna provides for making copies during replication
Genetic continuity requires identical DNA copies passed to daughter cells. The S phase (DNA replication) uses template DNA to make exact copies, ensuring each new cell gets the same genetic material. This directly supports continuity. Other options relate to division steps (A), cell cycle control (B), or checkpoints/replication timing (C), not the core mechanism of copying genetic material.
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D. the template DNA provides for making copies during replication