Carbon Copy (CC), the first cat produced from aclone, was created from an ovarian cell taken from hergenetic donor, Rainbow, a calico cat. The diploid nucleusfrom the cell was extracted and then injected into an enucleatedegg. The resulting zygote was then allowed to developin a petri dish, and the cloned embryo was implanted inthe uterus of a surrogate mother cat, who gave birth to CC.CC’s surrogate mother was a tabby (see the photo below).Geneticists were very interested in the outcome of cloninga calico cat because they were not certain if the cloned catwould have patches of orange and black, just orange, orjust black. Taking into account the Lyon hypothesis, explainthe basis of the uncertainty. Would you expect CC to appearidentical to Rainbow? Explain why or why not.
Carbon Copy (CC), the first cat produced from a
clone, was created from an ovarian cell taken from her
genetic donor, Rainbow, a calico cat. The diploid nucleus
from the cell was extracted and then injected into an enucleated
egg. The resulting zygote was then allowed to develop
in a petri dish, and the cloned embryo was implanted in
the uterus of a surrogate mother cat, who gave birth to CC.
CC’s surrogate mother was a tabby (see the photo below).
Geneticists were very interested in the outcome of cloning
a calico cat because they were not certain if the cloned cat
would have patches of orange and black, just orange, or
just black. Taking into account the Lyon hypothesis, explain
the basis of the uncertainty. Would you expect CC to appear
identical to Rainbow? Explain why or why not.
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