Crossing over occurs when homologous chromosomes pair up in meiosis(cannot occur between different chromosomes)
Paired chromosomes swap pieces of DNA with the same genes
Example
A butteffly inheririts the long antenna (A) and plain body (B) alleles from one parent, and the short antenna (a) and striped body (b) alleles from the other
In your notes, list the gamete genotypes for hte buttefly in each scenario below.
