Question 57 - Science Practice Test for the TEAS

Referring to this passage, what could Gregor Mendel conclude from the result of his experiment with green and yellow pea plants?

Pea plants can self-pollinate (sperm and eggs both come from the same plant) or they can cross-pollinate (sperm and eggs come from different plants). Gregor Mendel used this to study heredity. He found that if he took a plant that only produced yellow peas and crossed it with a plant that only produced green peas, all the offspring would only produce yellow peas.

On the other hand, if he left the offspring (all yellow pea plants) alone and let them self-pollinate, then the second generation had a ratio of 3:1 yellow to green pea plants. Thus, Mendel could demonstrate that some traits are “dominant” while others are “recessive.”

Create a FREE profile to save your progress and scores!

Create a Profile

Already signed up? Sign in

Unlock all features!

  • 2x Bonus Practice questions
  • Exam simulation mode
  • Printer friendly downloads
  • Personalized cram course
  • Ad-free studying
  • Money-back guarantee
Upgrade to Premium
Need TEAS Math Test Prep?
If you are serious about getting a great score on your TEAS Math test, try our recommended Math Prep Course.