Scelta multipla
Which of the following is false in respect to eukaryotic chromosomes?
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11. Cell Division
Organization of DNA in the Cell
Scelta multipla
The centromere is a region in which __________.
A
chromosomes become aligned during metaphase
B
microtubules are fastened to the centrioles during anaphase
C
the new cell plate forms in telophase
D
the chromosomes are connected to the cell plate in metaphase
E
sister chromatids are attached to one another in prophase
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Understand the role of the centromere: The centromere is a region on a chromosome where sister chromatids are held together. It plays a crucial role during cell division, particularly in mitosis and meiosis.
Identify the phase of cell division: In prophase, the chromosomes condense and become visible under a microscope. During this phase, the sister chromatids are attached at the centromere.
Differentiate between phases: Recognize that metaphase is when chromosomes align at the cell's equatorial plane, and anaphase is when sister chromatids are pulled apart. The centromere is not primarily involved in these processes.
Clarify the function of the centromere: The centromere is essential for the proper segregation of chromosomes during cell division, as it is the attachment site for spindle fibers that pull sister chromatids apart during anaphase.
Conclude with the correct association: The centromere is specifically the region where sister chromatids are attached to one another, particularly noticeable during prophase, before they are separated in later stages of mitosis.
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