Question

Which of the following pair of contrasting traits was not studied by Mendel?

• A. Pink and white flowers
• B. Inflated and constricted pods
• C. Axial and terminal flowers
• D. Green and yellow pods

Answer 1

The Correct Option is A

Mendel, known as the father of genetics, conducted experiments on the inheritance of traits in pea plants. He carefully selected pairs of contrasting traits to study how these traits were passed on from one generation to the next. The list of traits he studied includes:

• Form of seed: round or wrinkled
• Color of seed: yellow or green
• Color of flower: purple or white
• Form of pod: inflated or constricted
• Color of pod: green or yellow
• Position of flowers: axial or terminal
• Length of stem: short or tall

From the provided options, "Pink and white flowers" is the pair that was not studied by Mendel. Instead, he studied "purple and white" flowers.

Thus, the correct answer is: Pink and white flowers

Answer 2

(1) Pink and white flowers

This pair of contrasting traits was not studied by Mendel. Mendel focused on traits that exhibited clear dominant and recessive relationships, and pink flowers do not fit this model as they often result from incomplete dominance.

(2) Inflated and constricted pods

This pair of contrasting traits was studied by Mendel. He observed that inflated pods were dominant over constricted pods.

(3) Axial and terminal flowers

This pair of contrasting traits was studied by Mendel. He observed that axial flowers were dominant over terminal flowers.

(4) Green and yellow pods

This pair of contrasting traits was studied by Mendel. He observed that green pods were dominant over yellow pods.

Conclusion

The correct answer is (1) Pink and white flowers. This pair of contrasting traits was not studied by Mendel because it does not fit the simple dominant-recessive model that Mendel focused on.