 Recent Herp Discussion | | | | | | | | Online Users: 244 | | 158 members and 86 guests | | 888lowndes888, Adictv, Adzo, ajwill, ally_pup, andrew, andyh, aprice, Azzajay77, bat088, baxtor, Bearded_Lady, beeman, blackhead1234, bluejordo, Bluie, boconnor, book, Bowmer, bredli84, buttss66, carpetsnake, Casey, Chimera, chunky, cougars, Dan19, darren, Dave94, dee4, dickyknee, disasterpiece7.0, dizone, Dodie, dougie210, dragonman, dtulip10, Duke, Dusty62, Eastern Snake Neck, eddy9898, eden roscoe, emerald_taipan, Eriquar, Ewan, fishbot, fishead, frangipani, fraser888, frogboy, froggyboy86, froglet, Fruitbat, funcouple, garthy, Gavin, Glen B, Gnome73, gonff, Greebo, gregsydney, grimace256, Grunter023, Harro, herp2824, herpsrule, Hetty, hodges, horsesrule, husskisam, innocent, inthegrass, jamgo, jamie1234, Jason, JasonL, jaysnakes3, jbthompson, jimbo, Jonno from ERD, jordan9495, junglepython2, Jungle_Freak, kab_65, Katherine, koalapie, krefft, Kris, kyle1, lemonz, levis04, Lonewolf, LullabyLizard, maccabros, malika, maloos, mattG, maxxeman, Mayo, mcmuffin125, miley_take, minexs, Minidrummer91, moloch05, MontyB, Mr.K, MrBredli, mysnakesau, natrix, nervous, Nikki_Elmo, No-two, nocturnal_pulse, olivehydra, omg_a_gecko, Ozzy109, paleoherp, palmej, paulw6676, pete12, pommygit, pomzx, Rache, rainbow__serpent, redline, Renagade, reptile_mad, Riley, Rocky, scorps, sengir, sharyn, shlanger, slim6y, solar 17, spottedjayne, ssssnakeman, Stewydead, sullo, swaddo, swampie, the.badger, Twin_Rivers, vadnappa, warren63, Whimsey, xshadowx | |  | | 
25-Oct-06, 02:15 PM
| | Suspended | Join Date: Oct-06 Location: Wish it was in bed. | | |
Dragon,
I had meant to say totally recessive, typo on my behalf.
But there is no real need to class it as either dominant or recessive as it is not a single loci, nor a single allele pair.
It is polygenic, the phenotype is dependant on more than one loci,a nd more than one allellic pair. It is the only way for the phenotypic polymorphism to occur.
Cheers Jordo, 
Check out the mendelian genetic odds for labrador retrievers and their colours in a simple example of polygenics.
Two genes. One is the black brown gene. 2 alleles, one black one brown.
2nd gene is the hypomelanistic gene (not amelanistic). - expression of melanin in the skin and inthe fur. ie, expressed or non expressed.
This gives rise to 3 colours of labradors. Out of 16 pups, 9 will be black. 4 will be yellow, and 3 will be chocolate.
If this polymorphism from only 2 gene loci, and 2 alleles at each loci gives rise to 3 distinctly different phenotypes, then clearly with many more allels and loci involved, the recombination would be almost irreproducible, and insanely complex.
__________________
You ever noticed how people who believe in Creationism look really unevolved? You ever noticed that? Eyes real close together, eyebrow ridges, big furry hands and feet. "I believe God created me in one day"
~~~~~~~~Yeah, looks liked He rushed it.
|
25-Oct-06, 02:24 PM
|  | Subscriber | Join Date: Nov-05 Location: QLD | | | |
thats much to complicated for a bum like me junglist, ill just breed them and look at the pretty colours.lol.
|
25-Oct-06, 02:25 PM
| | Suspended | Join Date: Oct-06 Location: Wish it was in bed. | | |
hehehe, yeah me too.
It makes the matrix for the calculation pretty difficult and complex.
They do look damn cool though
keep up the good work.
__________________
You ever noticed how people who believe in Creationism look really unevolved? You ever noticed that? Eyes real close together, eyebrow ridges, big furry hands and feet. "I believe God created me in one day"
~~~~~~~~Yeah, looks liked He rushed it.
|
25-Oct-06, 02:46 PM
|  | Retired Snake Subscriber | Join Date: Aug-05 Location: Western Sydney Age/Gender: 25  | | | Quote:
Originally Posted by TrueBlue  thats much to complicated for a bum like me junglist, ill just breed them and look at the pretty colours.lol. | ... and i'll just buy them off you.
__________________
Rekognize: All comments are made with tongue in cheek.
In case of suspension, catch me at m_bredli@hotmail.com  |
25-Oct-06, 03:03 PM
|  | Yes, that Hix Moderator | Join Date: Mar-04 Location: Sydney Gender: | | | Quote:
Originally Posted by junglist* If you have a hypo, the trait is recessive, so you must be dealing with a heterozygotic individual. If you cross it with a Homozygotic dominant individual, you will get all heterozygotic individs. If you crossit with a heterozygotic normal, you will get a mix, but more heterozygotic dominant phenotypes. | Junglist,
Everything you said makes sense except the above paragraph. To wit:
If you have a hypo and the trait is recessive, you must be dealing with a homozygous individual, as a heterozygote for a recessive trait looks normal.
Further more, if you cross a heterozygote with a homozygote you will get mostly heterozygotes and a few homozygotes. I'm not sure where you get 'Homozygotic dominant' from, as you've identified this trait as recessive. Dominant for what? And whats a heterozygotic normal?
Have you considered the it might not be polygenic, but only one gene that's polymorphic?
And True Blue - are those Metric handfuls or Imperial handfuls?
Hix
__________________
"I'm not young enough to know everything".............Oscar Wilde
|
25-Oct-06, 03:45 PM
| | Retired Snake Subscriber | Join Date: Aug-05 Location: Western Sydney Age/Gender: 25 | | | |
*Lost*
__________________
Rekognize: All comments are made with tongue in cheek.
In case of suspension, catch me at m_bredli@hotmail.com |
25-Oct-06, 04:21 PM
| | Subscriber | Join Date: Nov-05 Location: QLD | | | |
lol hix, a bit of both i think. im from the inbetween era.
| | |
|
