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The problem of doubling DNA amount each generation in sexual reproduction is solved by

Question
The problem of doubling DNA amount each generation in sexual reproduction is solved by
eliminating DNA copying altogether
meiosis, a cell division that halves the chromosome number in germ-cells
combining DNA from four parents instead of two
removing the nucleus from germ-cells
Answer
meiosis, a cell division that halves the chromosome number in germ-cells
Detailed Explanation
Meiosis produces germ-cells with half the number of chromosomes and half the DNA, so that fusion during fertilisation restores the normal DNA content.
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