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Cloning animals

Now cats may have more than nine lives.  (0) The company that funded the first successful cloning of a domestic cat two years ago has gone commercial. (B)

An e-mail sent in early February to the company's gene-banking clients offered to clone up to six cats. The cost? U.S. $50,000 each. Clients had less than a month to take advantage of the offer, which ended Friday, February 27.

A cloned cat is a unique, newborn animal that shares genes and possibly behavioral tendencies with its genetic predecessor.

Ben Carlson, vice president of communications for Genetic Savings and Clone, said four clients signed up to duplicate their cats, and work to reproduce the pets will begin immediately. (1) …………………………………………………………………

Three cats owned by the company will also be copied. The cats and their genetic donors will be displayed at the American Veterinary Medical Association conference next year, Carlson said, to give veterinarians an opportunity to see them and learn about the technology.

(2) ……………………………………………………………………. Her owner, Arizona entrepreneur John Sperling, has pumped millions of dollars into the cloning project since it began in 1997. Missy died at age 15 in 2002, but tissue samples of her have been saved for cloning purposes.

Dogs have proven more difficult to clone than cats. (3) ………………………………… “I wouldn't be surprised if we produced a dog clone this year," he said.

According to a 2002 survey published in the science journal Nature Biotechnology, 23 percent of all cloned mammals produced by nuclear transfer—transplanting the nucleus of one cell into another—failed to reach healthy adulthood.

(4)  …………………………………………………………………………… The first cloned mammal—Dolly, a sheep—was euthanized last year because of a virus-induced lung tumor. The Roslin Institute in Scotland, which produced Dolly, said there is no evidence that cloning was a factor in the six-year-old sheep contracting the disease.

Since Dolly's creation in 1996 a variety of other animals have been duplicated, including a caracal cat and an African wildcat.

(5) …………………………………………………………… According to a spokeswoman, both cats are doing well and will be on display this spring at the Audubon zoo.

A)  The company is also working on duplicating dogs—specifically, a husky mix named Missy.

B)  The company that funded the first successful cloning of a domestic cat two years ago has gone commercial.

C)  The privately held company based in Sausalito, California, plans to present the clones to owners in November.

D)  Still, Carlson said, the company is "probably as close to success” as they've ever been.

E)  The two wildcats were duplicated last year by scientists at the Audubon Center for Research of Endangered Species in New Orleans, Louisiana.

F)  The survey showed that health problems in cloned animals range from mild to fatal, including obesity, anemia, heart defects, liver fibrosis, and respiratory failure.

G)  Cloning can grow in popularity faster than we have ever imagined.