How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
Answer: (A) 14. Answer: (A) 14 Solution: Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits (such as smooth or wrinkled seeds, yellow or green seeds, tall or dwarf plants).
- A.14✓
- B.8
- C.4
- D.2
Correct Answer
(A) 14
Solution & Explanation
Answer: (A) 14 Solution: Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits (such as smooth or wrinkled seeds, yellow or green seeds, tall or dwarf plants). These 14 varieties formed the 7 pairs of contrasting traits he studied. NCERT Reference: NCERT Class XII, Ch 4, p.54, lines 041-043: "Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits."