The Avenue des Champs-ElysÃ©es is probably the most famous avenue in the world. This impressive street stretches from the Place the la Concorde to the Place Charles de Gaulle, the site of the Arc de Triomphe.
Best Answer: Crossing-over is another name for recombination or physical exchange of equal pieces of adjacent non-sister chromatids. When crossing-over occurs chromatids break and may be reattached to a different homologous chromosome.
Unequal crossing over. 1  Normal crossing over Breaks up physical associations of genes on chromosomes. Allows for recombination to produce new sets of alleles on chromosomes. 2  Unequal cross-over and the origin of gene duplications. (Fig.