Answer:
The correct answer is - crossing over, mutations caused during crossing over, and independent assortment.
Step-by-step explanation:
Meiosis is important as it helps that all organisms form via sexual reproduction contains the correct number of chromosomes in the offspring. Meiosis also produces genetic variation in various ways that are crossing over, mutations caused during crossing over, and independent assortment.
Independent assortment helps in getting half number of chromosomes. In meiosis, crossing over takes place in prophase 1 which results in recombination by an exchange in the arms of chromosomes.