Q8
1 markMCQSection A

A tall pea plant with round seeds (TTRR) is crossed with a short pea plant with wrinkled seeds (ttrr). The F1F_1 generation will be:

Heredity
Mendel's Experiments

Options

(A)25% tall with round seeds
(B)50% tall with wrinkled seeds
(C)75% tall with wrinkled seeds
(D)100% tall with round seeds
Official Answer

100% tall with round seeds

Mendel's experimentsF1 generationtall traitround seed trait

Analysis & Explanation

Mendel's experiments show that when a tall pea plant with round seeds (TTRR) is crossed with a short pea plant with wrinkled seeds (ttrr), the F1 generation will be 100% tall with round seeds. This is because the tall trait (T) is dominant over the short trait (t), and the round seed trait (R) is dominant over the wrinkled seed trait (r).

Common Mistakes

  1. 1thinking that the F1 generation will be a mix of tall and short plants
  2. 2thinking that the F1 generation will have a mix of round and wrinkled seeds

Interesting Facts

Mendel's experiments were the first to demonstrate the principles of inheritance

Mendel's work was not widely recognized until after his death

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2025?

This question carries 1 mark in the CBSE Class 10 Science 2025 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Heredity" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Mendel's Experiments" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2025 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2025 paper.