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.
The classical example of a change in phenotype associated with unequal crossing-over is the. X-linked Bar (B) locus of Drosophila melanogaster. A duplication of the 16A region of the X. chromosome gives th-eye mutation, where the eye is reduced in size to a narrow vertical bar e Bar.