CC, for " CopyCat" or "

Carbon Copy Before the development of photographic copiers, a carbon copy was the under-copy of a typed or written document placed over carbon paper and the under-copy sheet itself (not to be confused with the carbon print family of photographic reproduc ...

" (December 22, 2001 – March 3, 2020), was a brown tabby and white

domestic shorthair A moggy is any cat which has not been intentionally bred. Moggies lack a consistent appearance unlike purebred cats that are selectively bred for appearance conforming to a standard. In contexts where cats need to be registered—such as in v ...

and the first cloned

pet A pet, or companion animal, is an animal kept primarily for a person's company or entertainment rather than as a working animal, livestock, or a laboratory animal. Popular pets are often considered to have attractive/ cute appearances, inte ...

. She was cloned by scientists at

Texas A&M University Texas A&M University (Texas A&M, A&M, TA&M, or TAMU) is a public university, public, Land-grant university, land-grant, research university in College Station, Texas, United States. It was founded in 1876 and became the flagship institution of ...

in conjunction with Genetic Savings & Clone Inc. CC's surrogate mother was a tabby, but her genetic donor, Rainbow, was a calico domestic longhair. The difference in hair coloration between CC and Rainbow is due to

X-inactivation X-inactivation (also called Lyonization, after English geneticist Mary Lyon) is a process by which one of the copies of the X chromosome is inactivated in therian female mammals. The inactive X chromosome is silenced by being packaged into ...

and

epigenetic In biology, epigenetics is the study of changes in gene expression that happen without changes to the DNA sequence. The Greek prefix ''epi-'' (ἐπι- "over, outside of, around") in ''epigenetics'' implies features that are "on top of" or "in ...

re-programming, which normally occurs in a

fertilized Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a zygote and initiate its development into a new individual organism or off ...

embryo An embryo ( ) is the initial stage of development for a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sp ...

before implantation. In December 2006, CC gave birth to four

kitten A kitten is a Juvenile (organism), juvenile cat. After being born, kittens display primary altriciality and are fully dependent on their mothers for #Establishing immunity, survival. They normally do not open their eyes for seven to ten days. A ...

s. The litter was fathered naturally by another lab cat named Smokey. It included two males named Tim and Zip and one female named Tess. Another kitten (a female) was stillborn. This incident was the first time a cloned pet gave birth. Throughout her life, CC appeared to be free of the cloning-related health problems that have arisen in some other animal clones. "CC has always been a perfectly normal cat and her kittens are just that way, too," according to Shirley Kraemer, CC's owner. "We've been monitoring their health and all of them are fine, just like CC has been for the past five years." On March 3, 2020, CC died at 18 years old in

College Station, Texas College Station is a city in Brazos County, Texas, United States, situated in East-Central Texas in the Brazos Valley, towards the eastern edge of the region known as the Texas Triangle. It is northwest of Houston and east-northeast of Austin, ...

References

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External links

Grown
Rainbow (left) and daughter
Copy Cat now has three kittens, September 2006

2001 in science Cloned cats 2001 animal births 2020 animal deaths Texas A&M University Individual cats in the United States Genetically modified organisms

See also

References

External links