In pea plants, tall (T) is dominant to short (t). A TT plant is crossed with a Tt plant. What is the probability that an offspring is homozygous dominant (TT)?

Answer and explanation

Correct answer: A.

  1. Step 1: Draw the Punnett square for and count the matching offspring.
  2. Step 2: The probability is .
Answer
.
Why not the others: , and do not fit.

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