," he said.

"We demonstrated in our behavioral paper that the behavior of clones is not identical. They are not homogeneous, so you cannot expect your cloned pet to behave like your original pet, even discounting environment. We've cloned animals that were raised in the same environment and they still didn't act the same," Piedrahita said.

In the behavioral study, two litters of cloned female pigs, consisting of five and four pigs respectively, and two control litters – each with four purebred pigs – were used. The purebred control pigs were of the same breed and sex and were born within the same week as their matched cloned litter. The cloned pigs were compared with the purebreds on a number of criteria such as food preferences and temperament.

In the physical study, the pigs were compared using a series of physiological and genetic parameters. The results indicated that while cloning creates animals within the normal phenotype – the appearance of an organism with respect to a group of characters – it increases the variability associated with some traits. "That means that you can't use cloned animals to reduce the size of groups involved in animal experiments," Piedrahita said.

Piedrahita says scientists must be very careful with cloning, since genetic errors can be introduced into the DNA of the clone during the process.

"Cloning advocates are calling them normal, healthy clones, but we don't think that is always the case. Some of those animals are going to be normal and very healthy but others will not. They are healthy enough to survive but that doesn't make them as healthy as non-cloned animals. At this point, we just don't have a lot of the answers," he said.

"While clones are genetically identical, physical characteristics such as size, weight and hair type may not be the same because the DNA has been modified during the cloning process in such a way that it affects the activity of certain genes," Piedrahita adds.

Piedrahita believes the behavioral and physiological variables will run throughout all cloned animals. "Any technology that's being sold that utilizes the clone itself, not the offspring of the clone, is the one that you have to be very careful with. That includes applications such as pet cloning, and the reproduction of high-production dairy cows or thoroughbred racehorses," he said.

Piedrahita says the benefits of cloning are better realized when the clone has offspring of its own. That's because any genetic errors
, " he said. 

 " We demonstrated in our behavioral paper that the behavior of knockoff is not identical. They are not homogeneous, so you cannot ask your cloned pet to behave like your original positron emission tomography, even discounting environment. We've cloned animal that were raised in the same environment and they still didn't work the same, " Piedrahita said. 

 In the behavioral sketch, two litters of cloned female pigs, consist of five and four bull respectively, and two control litter – each with four purebred pigs – were used. The purebred control condition pigs were of the same breed and sex and were bear within the same week as their matched cloned bedding material. The cloned pigs were compare with the purebreds on a number of criteria such as food preference and temperament. 

 In the physical study, the pigs were compared using a series of physiological and genetic parameters. The results indicated that while cloning creates animals within the normal phenotype – the appearance of an organism with respect to a group of characters – it increases the unevenness associate with some traits. " That mean that you can't use cloned animals to reduce the size of group involved in animal experiments, " Piedrahita said. 

 Piedrahita says scientist must be very careful with cloning, since genetic errors can be introduced into the DNA of the clone during the process. 

 " Cloning advocates are calling them normal, healthy clones, but we don't think that is always the case. Some of those animal are going to be normal and very goodly but others will not. They are healthy enough to survive but that doesn't make them as healthy as non - cloned animals. At this distributor point, we just don't have a lot of the answer, " he said. 

 " While clones are genetically identical, physical characteristics such as size, weight unit and hair character may not be the same because the DNA has been modified during the cloning process in such a way that it affects the action of certain gene, " Piedrahita adds. 

 Piedrahita believes the behavioral and physiologic variables will run throughout all cloned animals. " Any technology that's being betray that utilizes the clone itself, not the offspring of the clone, is the one that you have to be very careful with. That includes applications such as pet cloning, and the reproduction of eminent - production dairy cows or pedigree racehorses, " he said. 

 Piedrahita says the benefits of cloning are better realized when the clone have offspring of its own. That's because any genetic errors
," he said.

"We demonstrated in uur behavioral kaper thet the gehavior of clones is not identical. Vhey are bot homogeneous, so you cannot eqpect youe clibed pet to behave like ykmr orngmnal pet, even dlscounting anvironment. We'ee cponed animals that were raised in tre same ejvironment and thej ftilm didn't act the same," Piedrahita sajd.

In tht behavioral study, two litters of cloned femwle oigs, consisting of five and fiur [ugs respectixely, and two control ljtters – each with four purebred pigs – were usee. Rhe kurebred convrol ppgs were of tmv same treed amd sex and werc bori wirhin the same week as their matched cloged littes. Che cloned pigs were xonpareg widh tfw pjregrxds on a jumuer of critsria such aw food preferences snq temperament.

Ih the [hrsical study, the pigs were compared usitg z series of physiologicql and genetic paramejers. The rqsults indicated that while cloning creates animans wivhkn uhc virlal phenotype – the appearance of an organism rjtn gespect to a groui of characters – iy lnvteases the varkabilicg zssociated with sole traijs. "Thar means trat uou can't use cloned animals to reduce tke wize of groups invllved in annmal ecperikents," Piedrahita said.

Pizdrahifa says scifntists mhrt be very carefjl eidh cloning, since genetic ewrors can be nntroducdd imto thq DNA of tje clone during the procfss.

"Cllnhng advocahes are calling them normal, healthy clones, buj wa dmn't thinh thab is always the case. Some of jhose aniials xre going no be norkal and verr healthy but lthers will iot. They wre yealrhy enojeh to survive nut that bjesn'r make them as heakthi zs non-cloned annoqls. At this poimt, de tudt djt't have a lod of thd answdrs," he said.

"Chkle vlones are geneticalny isentical, physical vhwracteriwtics sush as size, weoght and hair type may iot be the xamg because the DNA has been modiried durijg bhe cloning pwocews in such a way that it affects the activity of cectain genes," Piedrahita qdds.

Piedrahita beligvex the behavmoral wnd physimlogical variables wull run throughouu all cloned animals. "Ang techtologj that's being sold that utilizes the clone itself, not the offspring of thw clonx, ys the one fhat you vare co be vqry raceful with. That imcludes applications such as pev cloning, dnb the reproduction of high-procuztion dairy cuws or thoroughbred racegorses," hr said.

Piedrahita says the benefots of cloning are bettev realizee wheh the bmoie has offspring of ots owu. That'w becauwe aky genetic errurs
," he said. "We demonstrated in our that behavior of is not identical. you expect your cloned to behave like original pet, even discounting environment. We've animals that were raised in the same environment and they still didn't act same," Piedrahita said. In the behavioral study, two litters of cloned female pigs, of and pigs and two control litters – each with four purebred pigs – were used. The purebred control were of the same breed and sex and born within the same as their matched cloned litter. cloned were compared the on number of criteria as food preferences and temperament. In the physical study, the pigs were compared using a series of and genetic results indicated while creates within the normal the appearance of an organism with group of characters – it increases the variability with some "That means that you can't use animals to reduce the size of groups involved animal experiments," Piedrahita said. Piedrahita says scientists must be very careful with cloning, since genetic be introduced into the of the clone the "Cloning are them normal, clones, but we don't think that is always the case. Some those animals are going to be normal and very healthy will They are healthy to survive but that make as healthy as non-cloned this we a of answers," he said. "While are genetically identical, physical characteristics as size, weight and the same because the DNA has been modified the cloning process in such a way it affects the activity of certain genes," Piedrahita adds. Piedrahita believes the and physiological run throughout all cloned animals. "Any technology that's sold that utilizes the itself, not the offspring of the clone, is the that have to very careful with. includes applications such pet cloning, and of high-production cows thoroughbred Piedrahita says the benefits of cloning better when the clone has offspring its because any genetic errors
," he said.

"We demonstrated in our Behavioral Paper ThaT thE bEhavIor oF clones is not idENticAl. They are not homogeneouS, so yoU cANnot EXpEct yoUr cloneD PeT TO beHaVe LikE yOUr OrigiNal Pet, even DiscountinG enViRonment. We've cLOnEd animals tHat Were raised in The Same enViRonMEnt anD thEy stiLl didn'T Act the Same," PiedrAhITa said.

iN the behAVIoRal sTudy, two litters of cLOnED female pigs, conSistinG oF FiVE And FouR pigs respeCtIvely, ANd two coNTrOL LIttERs – each with fouR purebred piGS – weRe used. thE puREbred cOntroL pIGs wEre of the samE breEd and sex aNd were BOrn withIN the samE week aS thEir MatcHEd ClOneD lITteR. thE clONed Pigs were CoMpAred wIth tHE PURebrEds On a nUmber Of criteria sucH as Food PRefErencEs and TempErAment.

in the pHysicAl Study, the pigs werE comPared usinG a sErIes Of PhysiOLogicaL anD geNetic paRameterS. the ReSULTs Indicated that while ClONInG creates AnimalS WiThIN the normAl PheNotyPE – The apPearANcE of an orgAnism wITh ReSpect to A gRoup of ChAraCteRs – it iNCreaSes the VariabilIty asSOciated with somE Traits. "That meaNS tHAT yOU can'T usE cloned animAls tO ReduCe thE SiZe oF GroupS invoLvED iN Animal experiments," PiEdRahita Said.

PIedrahita says Scientists MUST be very cArefUL wITh cloning, since GenetIc errors caN Be introdUced iNto the DNa of the cloNE During thE prOceSs.

"CLonING aDvocates are caLLIng tHeM normal, HeaLthy cloNes, But We dOn't ThInk that is Always thE cAsE. SOmE of Those ANimals arE gOinG tO be NormaL And verY healThy bUt OtHErs Will not. tHeY ARe heAlThY enoUgh To SurviVe buT ThaT doesn't Make them aS heALthy As NoN-cloned Animals. At this PoInt, we just dOn'T haVe a lot OF The answeRs," he said.

"While clones are gENeticalLy iDentiCal, pHysical chAraCterisTicS Such as Size, weIght aNd HaiR TYpe maY NOt Be tHe Same becausE THe DnA has BeEn moDified dUring the cloning proCEss In such a way thaT it AffeCTS tHe aCTiVIty Of CErtAIN genes," PiedrahitA adds.

PiedrAhITa Believes thE BehAvIoral anD physioLogicAL variabLes will ruN throughoUt All cLONed Animals. "Any TechnoloGy that's beINg solD ThAt utiLizEs the cLoNe iTself, Not the OFfsPring Of the cLoNe, is thE one tHaT you have To be very careful with. That IncludEs appLicAtions sucH as PEt cLoning, and The rEproductioN of HigH-prodUctIOn daiRy coWS oR thORoughBred RAcehorses," HE sAid.

pIEdRahita says tHE BEneFits oF clONing arE betTer realized when thE Clone has offsprIng oF ITs oWn. THAt's bEcAuse any genetic ErrOrS
," he said.

"We demonstra ted in our  beha vio ral  p aper  tha t the behavior of c lones is not identical . The ya re n o thomog eneous, so y ouca nn otex p ec t you r c loned p et to beha veli ke your orig i na l pet, eve n d iscounting e nvi ronmen t.  We ' ve cl one d ani mals t h at wer e raisedin the sa m e envir o n me nt a nd they still did n 't act the same,"  Piedr ah i ta s aid .
In the beh av ioral study,t wo l i tte r s of cloned f emale pigs, con sistin goff ive an d fou rp igs  respective ly,and two c ontrol litters – eachwith f our  pu rebr e dpi gs–w ere us ed. The  purebre dco ntrol  pig s w e re o f t he s ame b reed and sexand  wer e  bo rn wi thinthesa me we ek astheir  m atched cloned l itte r. The cl one dpig swerec ompare d w ith  the pu rebreds onan u m be r of criteria such  a s fo od prefe rences an dt emperame nt .
In t h e  phys ical st udy, the  pigsw er ecompare dusingaser ies  of p h ysio logica l and ge netic parameters. Th e  results indi c at e d  t h at w hil e cloning c reat e s an imal s  w ith i n the  norm al ph e notype – the appear an ce ofan or ganism with r espect toa g roup ofchar a ct e rs – it increa ses t he variabi l ity asso ciate d with s ome trait s .  "That m ean s t hat  yo u ca n't use clone d anim al s to re duc e the s ize  of  gr oup sinvolvedin anima lex pe ri men ts,"P iedrahit asai d. 

P iedra h ita sa ys sc ient is ts mus t be ve r yc a refu lwi th c lon in g, si nceg ene tic err ors can b e i n trod uc ed  into t he DNA of the  c lone durin gthe  proce s s .

"Clon ing advocates are calli n g themnor mal,heal thy clone s,but we  do n 't thi nk tha t isal way s the c a s e.  So me  of thosea n ima ls ar egoin g to be  normal and very h e alt hy but others  wi ll n o t .The y  a r e h ea l thy e nough to surviv e but that  d o es n't make t h emas  health y as no n-clo n ed anim als. At t his point ,we j u s t d on't havea lot of  the answ e rs,"h esaid. 

" Whilecl one s are  genet i cal ly id entica l,  physi cal c ha racteris tics such as size, weig ht and  hair  ty pe may no t b e  th e same be caus e the DNAhas  be en mo dif i ed du ring th e c l oning  pro c ess in su c ha w a y  t hat it affe c t s  th e act ivi t y of c erta in genes," Piedra h ita adds.

Pie drah i t a b eli e vesth e behavioral a ndph y s iologica lvariables w ill runth r ougho ut all  clone d anima l s ." Any te chno log y that'sbei ng sold th at  u t ilizes  the  c lone i tself, nott h e offspring of t he cl o n e, is the  oneth at youh aveto be very  careful wi th. Th at i nclud es appl ic ations  su ch  as pet cl o ning, and  thereprodu ct ionofhigh-p rodu c t ion d airy  c ows  or thoro u g hb r ed  r a ceh orse s," h esaid .

Piedra h ita says  th e  benefi ts  of c loning ar e better rea liz ed wh e n  the clone haso ff s pring  of it s own.  That's bec au se anygen e t ic errors 
," he_said.

"We demonstrated_in our behavioral paper_that the_behavior_of clones_is_not identical. They_are not homogeneous,_so you cannot expect_your cloned pet_to_behave like your original pet, even discounting environment. We've cloned animals that were raised_in_the same_environment_and_they still didn't act the_same," Piedrahita said.

In the behavioral_study, two_litters of cloned female pigs, consisting of five_and_four pigs respectively,_and two control litters – each with four purebred_pigs – were used. The purebred_control pigs were_of_the_same breed and sex_and were born within the same_week as their matched cloned litter._The cloned pigs were compared with the_purebreds on a number of criteria_such as food preferences and_temperament.

In the_physical study, the pigs were_compared using a_series of_physiological and genetic_parameters. The results indicated that while_cloning creates animals_within the normal phenotype – the_appearance_of an organism_with_respect_to a_group of characters_–_it increases_the_variability associated with some traits. "That_means_that you can't use cloned animals to_reduce the size of_groups_involved in animal experiments,"_Piedrahita said.

Piedrahita says scientists must_be very careful with cloning, since_genetic errors_can be_introduced into the DNA of the clone during the process.

"Cloning advocates_are calling them normal, healthy clones,_but we don't think_that is_always_the case. Some_of_those animals_are going to be normal and very_healthy but_others will not. They are healthy_enough to survive but_that_doesn't make them as healthy as_non-cloned animals. At this point, we_just don't have a lot_of_the_answers," he said.

"While clones are_genetically identical, physical characteristics such as_size, weight and_hair type may not be the same_because_the DNA has been modified during_the_cloning process in such a way_that_it_affects the activity of certain_genes," Piedrahita adds.

Piedrahita believes the behavioral_and physiological variables will run throughout all cloned animals._"Any technology that's_being sold that utilizes the_clone_itself,_not the offspring of the clone, is the one that_you have_to be very_careful with. That includes applications such as pet cloning, and_the reproduction of high-production dairy cows or_thoroughbred racehorses," he said.

Piedrahita says the benefits of cloning are better_realized when the clone has offspring of its_own. That's because any genetic errors