Parent AA and Parent aa have children. All children are Aa
Parent Aa and Parent Aa have children. 1AA:2Aa:1aa probability with each child.
This is recombination of the most direct/simplest kind.
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There are a number of ways that sexual reproduction results in genetic recombination. This is because the genes from 2 individuals are mixing to create a 3rd individual.
It would be wrong to consider mitosis insignificant as it helps in cell repair and replacement in our daily life and it would be impossible to survive without it and asexual reproduction as well but if it weren't for meiosis, none of us would have been born :) Meiosis is responsible for the division for our gamete cells which leads to the formation a zygote. from there on mitosis takes over.
nondisjunction
frameshift mutation: deletion
Occurs during prophase I of meiosis (pachytene) in a process called synapsis. Crossover usually occurs when matching regions on matchingchromosomes break and then reconnect to the other chromosome. The value of crossing over is that each parent has a different daughter cell.
i believe it is crossing over