random mutations decreased gamete number offspring with unique combinations of traits decreased number of alleles on each chromosome
I gave my students this multiple choice question: Which of the following is a result of the exchange of homologous chromosome parts during the process of meiosis?

Only one answer is correct among these 4 choices:
- random mutations
- decreased gamete number
- offspring with unique combinations of traits
- decreased number of alleles on each chromosome

Could you tell me which one is correct?

offspring with unique combinations of traits