Before prophase II begins, does the DNA in the cell duplicate itself?

Yes The original parent cell is called diploid because it contains a complete set of homologous chromosome pairs. Each of the four daughter cells is haploid, meaning that each contains half of the original parent cell's chromosomes.

Explanation:

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explanation:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.