Multiple choice

For a cross between tall plant with round seeds (TTRR) and short plant with wrinkled seeds (ttrr), the F1 plants will be __________.

  1. tall plants with round seed

  2. short plant with wrinkled seed

  3. tall plant with wrinkled seed

  4. short plant with round seeds
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A Correct answer
Explanation

When crossing a homozygous dominant plant (TTRR) with a homozygous recessive plant (ttrr), all F1 offspring will be heterozygous (TtRr) and show only dominant traits: tall plants with round seeds. This demonstrates Mendel's Law of Dominance.

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