Question

Gregor Mendel crosses a true-breeding tall plants (TT) with a true-breeding short plant (tt). What are the predicted phenotypes for the offspring ?

a. all tall
b. all short
c. ratio of 1 tall : 1 short
d. ratio of 3 tall : 1 short

Answer 1

a. all tall:

Step-by-step explanation:

Tall plants (TT) are the more dominate trait. Use the Pundett square (I will try to recreate it as best as possible but it will not look good):

t t

T Tt Tt

T Tt Tt

As you can (kind of) tell, T appears on all offsprings, and as the dominate trait, it will take over 100% of the time.

The next generation (depending on who you are breeding them with), will have a different result.

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