Genetics Question?

Question

I planted a seed from a pea plant with axial flowers. But all my new ones have terminal flowers.

Some Dude: Even then it would not have all terminal flowers.

ALL THE FLOWERS COME OUT TERMINAL

Lets assume the situation is perfect and no abiotic factors affect it.

Lets assume the situation is perfect and no abiotic factors affect it.

Answer 1

Recessive Genetic Traits would explain it. If both "parent" plants had the recessive trait(ill assume terminal--which you wouldnt necessarily observe) then there's a 1 in four possibility that the recessive trait will be observable.
In your case, i'm not sure if the recessive trait is terminal or axial.

Answer 2

There's way too little information here.
You need to know what type of inheritance is displayed by this trait, "axial or terminal". Is it simple dominance, codominance, or partial dominance? I'm assuming from your results that it is simple dominance and that your seed that you planted held the recessive trait (terminal).

Also, how was this seed produced? Was it produced via self-fertilization or cross-fertilization? If it was produced through self-fertilization, then your parent plant may be heterozygous for the axial/terminal condition (Aa). Once it self-fertilizes (Aa x Aa), then there is a 25% chance that the resulting seed will be homozygous recessive (aa), resulting in your terminal flowers.

Answer 3

Axial is dominant, huh?

Let me put forward a couple of possibilities:
1) A bookkeeping error on your part
2) Incomplete penetrance
3) An environmental effect, such as photoperiod or temperature.