|
| |
|
|
 |
I
have made punnet squares below showing the 4 different possibilities for
breeding the Double Tail gene. I have also given a photo reference for
those of you not familiar with punnet squares. This is the most simple gene to work with
as far as who will be, who will not be, how many, so on and so forth. I
did not make a true Single Tail bred to another true Single Tail example
because it throws all Single Tails, no possibilities of Double Tails
other than an odd mutation perhaps. |
| |
Single
tail carrying Double Tail |
| True Double
Tail |
ST |
dt |
| dt |
ST/dt |
dt/dt |
| dt |
ST/dt |
dt/dt |
 |
+ |
 |
= |
 |
 |
| DTM |
STF
(DT geno) |
50%
Double Tails |
50%
Single Tails (carry DT) |
| You will yield approximately
50% Single Tails that carry the Double Tail gene and approx. 50% true
Double Tails. This is my favorite combination because all of the babies
will at least carry the Double Tail gene which provides wider, fuller
finnage. This way you have both Single Tails and Double Tails to choose
from. |
|
Single
tail NOT carrying Double Tail |
| True
Double Tail |
ST |
ST |
| dt |
ST/dt |
ST/dt |
| dt |
ST/dt |
ST/dt |
|
+ |
|
= |
|
| DTM |
STF |
100%
Single Tails (carry DT) |
| You will yield 100% Single
Tails that carry the Double Tail gene and will not have any true double
tails in this spawn. If you were to breed a male and female from this
spawn, you would have the following results. |
| |
Single
tail carrying Double Tail |
| Single tail
carrying Double Tail |
ST |
dt |
| ST |
ST/ST |
ST/dt |
| dt |
ST/dt |
dt/dt |
|
+ |
|
= |
|
|
|
| STM
(carry DT) |
STF
(carry DT) |
25%
Single Tails |
50%
Single Tails
(carry DT) |
25%
Double Tails |
| You will yield 50% Single
Tails that carry the Double Tail gene, 25% Single Tails that do NOT
carry the Double Tail gene and 25% true Double Tails. The bad thing
about this pairing is that there is really no positive way to differentiate
between the Single tails that DO carry Double Tail and the ones that do
NOT carry it. You can guess, but you can never be positive. |
| |
True
Double Tail |
| True Double
Tail |
dt |
dt |
| dt |
dt/dt |
dt/dt |
| dt |
dt/dt |
dt/dt |
|
+ |
|
= |
|
| DTM |
DTF |
100%
Double Tails |
| You will yield 100% Double Tails. This one is great
if you want all Double Tails, but you should keep in mind that 100%
Double Tail spawn will be shorter, stockier and more prone to
deformities. A Double Tail x Double Tail cross is not wise unless you
have two double tails with long bodies. Double Tails will most times
have a shorter body and breeding two short bodied double tails will
result in even shorter bodied offspring. I always like to have Single Tails as well, especially Single
Tails that carry Double Tail. |
| |
|
