How can DNA be used as an evolutionary clock?How can DNA be used as an evolutionary clock?

Because of the History of DNA Mutations

Explanation:

The DNA of an organism is what causes different genetic mutations and adaptations in an organism. The DNA remains similar and had been evolving for many years but mutations can spring up at any time.

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

option a and d is the correct answer

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