AP BIOLOGY

Detailed explanation-1: -CC was genetically identical to Rainbow, the cat who donated the genetic material. But the cats looked different because coat patterns and other features can be determined in the womb.

Detailed explanation-2: -C.C had a different colour coat to Rainbow because the genetic information used to clone her was taken from just one cell. This cell would have already undergone permanent X inactivation and would have had the orange making gene inactivated.

Detailed explanation-3: -Even though the cats share the same DNA, each uses it differently, leaving them with different markings and personalities. Rainbow the cat is a typical calico with splotches of brown, tan and gold on white. Cc, her clone, has a striped gray coat over white.

Detailed explanation-4: -CC was produced using nuclear transfer of DNA from cells that were derived from a female domestic shorthair named Rainbow. Once it was clear the nuclear transfer was successful, Kraemer and other scientists transferred the embryos into a surrogate mother, who gave birth to a healthy kitten about two months later.

Detailed explanation-5: -She wasn’t the same color as the original cat. Rainbow was a calico, with grey and orange spots; the new kitten, now known as Carbon Copy, had grey spots with no trace of orange at all. “We really didn’t think about that happening at the time, ” explained Duane Kraemer, who was a team member on Operation Copycat.