Why was the idea of blending of traits not supported by Mendel's experiments?
Answer and explanation
Correct answer: Because the hidden trait appeared again in the second generation
The blending theory predicted that two parental traits would permanently mix, so a hidden trait should not reappear unchanged. Mendel crossed pea plants with contrasting traits and observed that the recessive dwarf trait disappeared in the F1 generation but reappeared in the F2 generation. This showed that hereditary factors remain discrete and are passed on separately. Therefore, option A is correct; B, C, and D contradict the actual observations.
Frequently asked questions
What is the correct answer to this question?
Because the hidden trait appeared again in the second generation
Why is this the correct answer?
The blending theory predicted that two parental traits would permanently mix, so a hidden trait should not reappear unchanged. Mendel crossed pea plants with contrasting traits and observed that the recessive dwarf trait disappeared in the F1 generation but reappeared in the F2 generation. This showed that hereditary factors remain discrete and are passed on separately. Therefore, option A is correct; B, C, and D contradict the actual observations.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Mendel’s laws.
