Multiple choice

Fill in the blank in the following sentence.

Like DNA replication, the doubling of a ___________ is semi-conservative in nature.

  1. Endoplasmic Reticulum

  2. Golgi Complex

  3. Centrosome

  4. Lysosomes

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The centrosome is an organelle that serves as the main microtubule organizing center (MTOC) of the animal cell as well as a regulator of cell-cycle progression. It was discovered by Edouard Van Beneden in 1883. The centrosome is thought to have evolved only in the metazoan lineage of eukaryotic cells.Doubling of a centrosome is similar to the DNA replication in two respects: the semi-conservative nature of the process and the action of cdk2 as a regulator of the process.

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