Question

Choose the correct option-

Among the following characters, which one was not considered by Mendel in his experiments on pea?

• A. Seed colour – ­Green or yellow
• B. Trichomes – ­Glandular or non glandular
• C. Stem­ height – Tall or dwarf
• D. Pod shape – Inflated or constricted

Answer 1

The correct option is B

Trichomes – ­Glandular or non glandular

The correct option is B.

Explanation of correct option:

1. Trichome is the hair-like outgrowth from the epidermis of the branches and stems in the plants. They protect the plant from UV light, transpiration, freezing temperatures, and transpiration.
2. Trichome can be glandular or non-glandular. Glandular trichome secretes various essential oils or metabolites.
3. Mendel used the pea plant Pisum sativum to study various contrasting characters and their inheritance patterns and stated the fundamental laws of inheritance.
4. The seven contrasting characters studied by Mendel are as follows-

Plant traits	Dominant trait	Recessive trait
Seed shape	Round	Wrinkled
Seed colour	Yellow	Green
Flower colour	Purple	White
Flower location	Axial	Terminal
Pod shape	Inflated	Constricted
Pod colour	Green	Yellow
Plant height	Tall	Short

Final answer: Trichomes – ­Glandular or non glandular was not considered by Mendel in his experiments on pea.