Match List-I with List-II
| List-I | List-II |
|---|---|
| Characters | Contrasting traits |
| (A) Pod shape | (I) Green/yellow |
| (B) Pod colour | (II) Round/wrinkled |
| (C) Seed shape | (III) Inflated/constricted |
| (D) Seed colour | (IV) Yellow/green |
Choose the correct answer for contrasting traits studied by Mendel in pea from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A) - (III), (B) - (I), (C) - (II), (D) - (IV)
In each pair of contrasting traits Mendel studied in the pea, the dominant trait is the first one named.
(A) Pod shape — this matches (III) Inflated/constricted. A full (inflated) pod is dominant. A pod that is pinched between the seeds (constricted) is recessive.
(B) Pod colour — this matches (I) Green/yellow. Green is the dominant pod colour and yellow is recessive.
(C) Seed shape — this matches (II) Round/wrinkled. Round is dominant and wrinkled is recessive.
(D) Seed colour — this matches (IV) Yellow/green. Yellow is the dominant seed colour and green is recessive.
NCERT Extract:
Mendel’s Laws of Inheritance – “… Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits. Some of the contrasting traits selected were smooth or wrinkled seeds, yellow or green seeds, inflated (full) or constricted green or yellow pods and tall or dwarf plants (Figure 4.1, Table 4.1).”