Do the condensed chromosomes at the start of both meiosis II and mitosis each co

Question

Do the condensed chromosomes at the start of both meiosis II and mitosis each consist of two chromatids? At the end of meiosis II and mitosis, is each chromosome made up of a single dsDNA molecule? The chromatids making up each of the double chromosomes present at the start of meiosis II are not necessarily exact copies of each other. Is this correct or incorrect? Why? The chromatids making up each of the double chromosomes present at the start of mitosis are exact copies of each other. Is this correct or incorrect? Why? Do the condensed chromosomes at the start of both meiosis II and mitosis each consist of two chromatids? At the end of meiosis II and mitosis, is each chromosome made up of a single dsDNA molecule? The chromatids making up each of the double chromosomes present at the start of meiosis II are not necessarily exact copies of each other. Is this correct or incorrect? Why? The chromatids making up each of the double chromosomes present at the start of mitosis are exact copies of each other. Is this correct or incorrect? Why?

Explanation / Answer

At the end of meiosis II and mitosis, each chromosome is made up of a single dsDNA molecule.this is true.
"The chromatids making up each of the double chromosomes present at the start of meiosis II are not necessarily exact copies of each other."
This statement is true as crossing over takes place in meiosis I which makes the two chromatids different. They are not the exact copies of each other.
"The chromatids making up each of the double chromosomes present at the start of mitosis are exact copies of each other."
This statement is true as mitosis division does not involve crossing over but involves only replication and formation of new daughter cells. hence, the two chromatids are exact copies of each other.
hope it helps

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