alleryStart learning →Meiosis halves the number of chromosome sets. What restores the full number?
AMitosis copying the chromosomes
BFertilization joining two gametes
CInterkinesis between divisions
DCrossing over between homologs
Answer & Solution
Correct answer: B. Fertilization joining two gametes
1. Meiosis produces haploid gametes, each with one set of chromosomes.
2. Fertilization fuses two of those haploid cells into one.
3. One set plus one set gives two sets, which is the diploid condition.
4. Mitosis copies a cell without changing how many sets it holds, so it cannot restore anything.
_Source: OpenStax Biology 1e (CC BY 4.0), Chs 10 and 11, section 11.2 Sexual Reproduction_
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