Question 5
How does an insertion occur in a chromosome?

It refers to insertion of longer sequence in chromosomes and occurs due to cross over in meiosis.

Explanation:

Or we can say it occurs when one portion of chromosomes is deleted from its normal place and insert into another chromosome

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

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