Biology, 22.04.2020 07:01, KindaSmartPersonn
Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. Single-celled organisms may use cell division as their method of reproduction. Regardless of the reason for mitosis, the process ensures genetic continuity. What is the step in the cell cycle that ensure genetic continuity?
A) B. DNA replication
B) D. Cytoplasmic division
C) B. Translation and transcription
D) C. Cell growth, preparing for mitosis
There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. Take for example the cells that line the digestive tract. These cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. What mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell?
A) DNA restriction point
B) DNA template plus DNA damage checkpoints
C) the template DNA provides for making copies
D) G0, quiescence checks for damage
Answers: 3
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