Crossing over during prophase I results in ________.duplicationreciprocal translocationnondisjunctiongenetic recombination

Crossing over during prophase I results in genetic recombination.

Here's a step-by-step explanation:

1. Prophase I is the stage of meiosis where crossing over occurs. This is a process that happens between two chromosomes that can exchange their genetic material.

2. The chromosomes that participate in this process are homologous, meaning they carry the same genes in the same order, but the specific versions of those genes might be different.

3. During crossing over, these homologous chromosomes line up and exchange segments of their DNA. This leads to a shuffling of the genetic information.

4. The result of this process is genetic recombination, where offspring receive a different combination of traits from their parents. This contributes to genetic diversity within a species.

So, the answer is genetic recombination.