border
sSNAKESs : Reptile Forum
 

Go Back   sSNAKESs : Reptile Forum > Python Forums > Python Regius

Notices

Closed Thread
 
Thread Tools Display Modes
Old 09-12-04, 12:30 PM   #46
Tim_Cranwill
Member
 
Tim_Cranwill's Avatar
 
Join Date: Aug-2002
Location: Manitoba
Posts: 4,971
I should have know better than to even try to debate a science subject with you!

Want to get into a music debate?!?!?
__________________
Cranwill's Captive Bred Snakes
www.cranwill.com
Tim_Cranwill is offline  
Old 09-12-04, 12:42 PM   #47
Jeff_Favelle
Member
 
Jeff_Favelle's Avatar
 
Join Date: Mar-2002
Location: BC
Posts: 9,740
Send a message via AIM to Jeff_Favelle Send a message via MSN to Jeff_Favelle Send a message via Yahoo to Jeff_Favelle
Yeah, I like Cindi Lauper and the Thompson Twins.


__________________
www.jefffavelle.com
Jeff_Favelle is offline  
Old 09-12-04, 01:29 PM   #48
Tim_Cranwill
Member
 
Tim_Cranwill's Avatar
 
Join Date: Aug-2002
Location: Manitoba
Posts: 4,971
Well then, you lose already!!! In more way than one!
__________________
Cranwill's Captive Bred Snakes
www.cranwill.com
Tim_Cranwill is offline  
Old 09-12-04, 03:32 PM   #49
Jeff_Favelle
Member
 
Jeff_Favelle's Avatar
 
Join Date: Mar-2002
Location: BC
Posts: 9,740
Send a message via AIM to Jeff_Favelle Send a message via MSN to Jeff_Favelle Send a message via Yahoo to Jeff_Favelle
LOL!
__________________
www.jefffavelle.com
Jeff_Favelle is offline  
Old 09-12-04, 04:09 PM   #50
Invictus
Member
 
Invictus's Avatar
 
Join Date: Jun-2003
Location: Calgary, AB
Age: 49
Posts: 5,638
Send a message via MSN to Invictus
Well, I thought I knew a thing or two about genetics. Now you're telling me het for dominant, and recessive for this, and no such thing as dominant and hets being the same as homo...... I have a LOT of reading to do.
__________________
- Ken LePage
http://www.invictusart.com
http://www.invictusexotics.com
Invictus is offline  
Login to remove ads
Old 09-12-04, 05:28 PM   #51
Dr. Antfarm
Member
 
Dr. Antfarm's Avatar
 
Join Date: Jul-2004
Location: On The Antfarm!
Posts: 82
If you guys think that 45k USD is alot, Mike Willbanks and Bob Clark are charging $100 000/pair het leucistic balls. I don't think NERD is in any danger of going out of buisness. They're one of the largest python breeders in the world, and are responsible for alot of the Ball morphs on the market today. I don't think they have alot of trouble selling their stuff.
Dr. Antfarm is offline  
Old 09-12-04, 08:22 PM   #52
Will
Member
 
Will's Avatar
 
Join Date: Apr-2003
Location: Edmonton, AB, Canada
Posts: 577
I think it's basically the same stuff as simple reccessive genes(such as albinism) only in reverse.

I think if I understand it, a dominant trait shows in a het animal('spider'), as opposed to a recessive trait being hidden in the het form('normal' in this case...?). So an animal that was het-spider and het-normal would show the spider phenotype, no...? And an animal that was homo-spider, would look just the same, only it would have that 'extra' spider allele and would only throw spider babies(in the het form).

Basically the same thing as albinos, only in this case the 'normal' gene is recessive and the 'spider' is dominant...?

I think that's how it works, but could be totally off...
__________________
California Kingsnakes.
Honduran Milksnakes.
Black Milksnakes.
Will is offline  
Old 09-12-04, 08:40 PM   #53
Dr. Antfarm
Member
 
Dr. Antfarm's Avatar
 
Join Date: Jul-2004
Location: On The Antfarm!
Posts: 82
This series of articles should clear everything up for everyone.

http://www.newenglandreptile.com/genetics_intro.html
Dr. Antfarm is offline  
Old 09-12-04, 08:42 PM   #54
Will
Member
 
Will's Avatar
 
Join Date: Apr-2003
Location: Edmonton, AB, Canada
Posts: 577
Oh and back on the original topic, I gaurantee that whoever plunks down the 45g isn't working a 9-5 job, plunking twoonies into a piggy bank saving up for that girl.

The money that pays for that snake has been made, and re-made many times over in other breeding projects in the past, and the money that goes into that snake will be made and re-made and spent on other projects in the future. For sure.

The reason I decided to get into snakes in the first place(and I think alot of breeders start out like this) was first and foremost a fascination with the animal, but I quickly realized that this hobby has the potential to pay for itself.

At this point in time, for me it is like many other people's non-snake hobbies - I hemmorage money left, right, and center to do what I do. I scrimp and save for new breeding stock and put off buying other things for myself, just to have some extra scratch to spend on my hobby. And like other people's hobbies, I would likely be doing it, even if the money constantly flowed out the door.

Hopefully in the next couple of years, for me, the hobby will start to pay for itself though. I can continue doing what I like to do in my spare time, but it won't cost me a thing. My 9-5 will pay for the bills and for Will - and the snakes will pay for the snakes. How many hobbies out there have that potential...? Not many that I can think of.

That 45,000 is exactly the same thing, only on a much larger scale - and those breeders have better jobs than I do...
__________________
California Kingsnakes.
Honduran Milksnakes.
Black Milksnakes.
Will is offline  
Old 09-12-04, 09:56 PM   #55
hhw
Member
 
Join Date: Jun-2004
Location: Vancouver, B.C.
Age: 43
Posts: 345
I find NERD's genetics guide a bit misleading on some issues. Particularly, their explanation of dominant genes using super pastels, as the pastel gene is not dominant.
__________________
1.0 Pastel Ball Python, 1.9 Normal Ball Pythons, 0.1 African House Snake, 1.0 Savannah Monitor, 0.0.1 Argentinian Horned Frog
hhw is offline  
Login to remove ads
Old 09-13-04, 02:12 AM   #56
Derrick
Member
 
Join Date: Sep-2003
Location: Fort McMurray, AB
Age: 52
Posts: 1,285
Quote:
Originally posted by hhw
I find NERD's genetics guide a bit misleading on some issues. Particularly, their explanation of dominant genes using super pastels, as the pastel gene is not dominant.
I'm glad I'm not the only one who thought that. It cpnfused me at first
Derrick is offline  
Old 09-13-04, 11:55 AM   #57
RandyRemington
Member
 
Join Date: Dec-2003
Location: Colorado
Age: 58
Posts: 126
I took a quick look at the NERD genetics page and looks like they put in a lot of work and it's a pretty nice page. My minor critique would be that they seem to be making a mistake I see a lot in the snake hobby, they are sometimes using the morph type terms "dominant" and "co-dominant" where they should be using the genotype terms "homozygous" and "recessive".

The genotype refers to the types of the two genes for a specific trait. Except for the gender chromosome (and sometimes even then I think) there are two copies of every gene. It can get a little complicated if you start talking about multiple mutant alleles of the same gene but lets leave that possibility out of the discussion for now.

The possible genotypes are homozygous normal (two normal copies of whatever gene we are talking about), heterozygous mutant (one mutant copy and one corresponding normal copy), and homozygous mutant. These possible genotypes apply to all mutations we have seen so far (i.e. no sex linked yet). Here are some simple rules for breeding outcomes based on genotype:

1. Homozygous normal X homozygous normal = 100% homozygous normal

2. Heterozygous mutant X homozygous normal = 50% chance heterozygous mutant, 50% homozygous normal

3. Heterozygous mutant X heterozygous mutant = 25% chance homozygous mutant, 50% chance heterozygous mutant, 25% chance homozygous normal.

4. Homozygous mutant X homozygous normal = 100% heterozygous mutant.

5. Homozygous mutant X heterozygous mutant = 50% chance homozygous mutant, 50% chance heterozygous mutant.

6. Homozygous mutant X homozygous mutant = 100% homozygous mutant.

These rules apply to all mutations, regardless of the mutation type (recessive, co-dominant/incomplete dominant, completely dominant). The mutation type just helps you correlate the genotype with the appearance (phenotype).

With the recessive mutation type, the heterozygous genotype has the normal phenotype and only the homozygous mutant genotype has the mutant phenotype.

With the co-dominant mutation type, or some prefer the term incomplete dominant mutation type, the heterozygous genotype has a mutant phenotype but the homozygous genotype has a different mutant phenotype.

With the completely dominant mutation type the heterozygous genotype and the homozygous genotype both have the same mutant phenotype.

The key is to remember what the tree ways of categorizing a mutation mean and keep them separate. The genotype (heterozygous, homozygous) describes the genes and the same rules apply to the inheritance of the genotype for all non sex linked mutations. The phenotype describes the appearance of an individual animal relative to a mutation (albino, pastel, super pastel). The mutation type (recessive, co-dominant/incomplete dominant, completely dominant) describes the interaction between the genotype and the phenotype for a mutation. The mutation type doesn't change depending on if you are talking about a heterozygous or homozygous animal for the same mutation (i.e. the super pastel phenotype is homozygous genotype, NOT the dominant form since the mutation is still the same type (co-dominant/incomplete dominant) as when you where looking at the heterozygous genotype pastel phenotype animal.

Also, regarding "There's 2 alleles for every gene, so of course there can be homo spiders." Does anyone have an estimate of how many potential homozygous spiders (i.e. from spider X spider breedings) have been produced and for how many years? I'm wondering how many of these are old enough that they should have been breed by now. Are there any that have breed and produced only spiders so far? I'll agree that in theory there should be a homozygous spider. Maybe not enough of potential homozygous spiders have been grown up and bred to prove any of the 1/3 that should be homozygous. However, if there where lots of potential homozygous spiders produced in the last 2 – 4 years and lots of those have been bred but none have yet produced only spiders then I would start to look at a theory to explain this (like maybe the homozygous embryos die soon after conception). I have almost no data on what has been produced and when but until a homozygous animal is produced any morph is potentially homozygous lethal.
__________________
Randy Remington
RandyRemington is offline  
Old 09-13-04, 04:08 PM   #58
hhw
Member
 
Join Date: Jun-2004
Location: Vancouver, B.C.
Age: 43
Posts: 345
Excellent explanation Randy!!! I'm glad you brought up the issue of codominance vs incomplete dominance.
__________________
1.0 Pastel Ball Python, 1.9 Normal Ball Pythons, 0.1 African House Snake, 1.0 Savannah Monitor, 0.0.1 Argentinian Horned Frog
hhw is offline  
Old 09-15-04, 12:46 AM   #59
TexasAggie04
Member
 
TexasAggie04's Avatar
 
Join Date: Jun-2004
Location: College Station, Texas
Posts: 64
Purchasing a bumblebee spider for breeding should also be looked at like any investment: potentially risky.

Scenario: Breeding projects lead you to increasingly valuable morphs, eventually netting you the 45k needed to purchase this fine animal. It croaks for some strange reason before you can breed it. You are very sad.

I would just be very hesitant to count my baskets before they hatch, or put all my eggs in one chicken.
__________________
1.0 Red-Tailed Boa
1.1 Amel Corn Snakes
1.0 Jungle x Coastal Carpet Python

Last edited by TexasAggie04; 09-15-04 at 12:50 AM..
TexasAggie04 is offline  
Old 09-15-04, 05:42 PM   #60
nita
Member
 
nita's Avatar
 
Join Date: Feb-2004
Location: Edmonton
Age: 46
Posts: 842
Quote:
Originally posted by Corey Woods
Most of the people who complain about the price of the Ball python morphs can't afford them. The people who aren't afraid to invest the money make the money.

Corey
PS......I've spent close to that on one animal......actually.....on multiple animals.
LOL, at the Red Deer show a friend commented that when you talk about your animals you sound like money is no object. After pointing out the animals you had on display and the cost of those animals I mentioned that I didnt' think it was when it came to your animals. I'm saving this thread so I can show it to my husband when he complains that I want to spend $1500 on a pastel.
__________________
Nita Hamilton
BALL PYTHONS!!
nita is offline  
Login to remove ads
Closed Thread


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 01:35 AM.

Powered by vBulletin®
©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright © 2002-2023, Hobby Solutions.

right