What morph should I get?

[rabernet]

Passing bad information just makes understanding genetics harder.
Dominant does not mean that all the offspring will have the trait. Dominant is the term to describe a trait in which the heterozygous form and homozygous form are different from the "normals" but cannot be consistently differentiated by appearance. In other words, the heterozygous form and the homozygous form look alike.
In a codominant trait, the heterozygous and homozygous forms can be reliably distinguished from one another (the homozygous form being what is commonly called the super)

Dammit Jim.....I mean Harald - I must spread the love some more before hitting you again!

 

[JeffreH]

Dominant does not mean that all the offspring will have the trait. Dominant is the term to describe a trait in which the heterozygous form and homozygous form are different from the "normals" but cannot be consistently differentiated by appearance. In other words, the heterozygous form and the homozygous form look alike.
In a codominant trait, the heterozygous and homozygous forms can be reliably distinguished from one another (the homozygous form being what is commonly called the super)

Spot on, Harold.

I've see a lot of people throw around the idea that Spiders and Pinstripes are codominat traits, simply because they behave somewhat similarly to them (well, as opposed to recessives)... so the confusion is understandable IMO.

To elaborate on Harold's comment: A mix of a Heterozgous Spider (we'll use Sn) and a Heterozygous Spider (Sn) will yield the following result.

25% Normals (nn)
50% Heterozygous Spiders (Sn)
25% Homozygous Spiders (SS)

There is no way to differentiate the heterozygous indivduals from the homozygous individuals.

In codominance, for the same heterozygous to heterozygous pairing... We'll use Pastels (Pn) as an example:

25% Normals (nn)
50% Pastels (Pn)
25% Super Pastels (PP)

Here the "super" form, or homozygous form, is easily distinguised from the heterozygous individuals. Mixing of the super form with normals produces an "in-between" heterozygous indivual that differs in appearence from both the homozygous and normal individuals (the Pastel).

I think confusion also arises in the difference between codominance and incomplete dominance. I think a lot of people have the misconception that codominance is a "blending" of two traits, as seen in the famous Snap Dragon examples (Red + White = Pink Flowers). When in reality, both alleles are completely expressed.

 

[Subdriven]

Find 1 project and try to make it.

I started and wanted to make a Bumble bee. Then I stepped up and wanted to make a Killer bee. Now I have my Killer bee and want to make a Queen bee. Who knows what I'll want to make when I get my Queen bee. It's never ending!!