Question

What is incorrect in the following mendelian traits:

Character Dominant Recessive

• A. Height Tall Dwarf
• B. Seed colour Green Yelllow
• C. Flower Position Axillary Terminal
• D. Flower colour Voilet White

Answer 1

The correct option is B

Seed colour Green Yelllow

The correct option is B:

Explanation of the correct option:

1. Mendel selected pure lines of garden pea plants for inheritance-based experiments.
2. He selected seven pairs of contrasting traits such as height, seed shape, seed color, flower position, flower color, pod shape, and pod color.
3. Seed color is one of the contrasting traits selected by Mendel.
4. The yellow color of the seed is a dominant trait, and the green color is a recessive trait.
5. A dominant trait can be expressed in both homozygous as well as heterozygous forms.

Explanation of the incorrect options:

Option A:

1. Height is one of the Mendelian contrasting traits that contain alleles of tall and dwarf.
2. Tallness was a dominant trait, whereas dwarf was a recessive trait.

Option C:

1. Flower position is a contrasting trait in garden pea that contains alleles of axillary and terminal.
2. The axial flower position is dominant over the terminal flower position.

Option D:

1. Flower color is a contrasting trait in garden peas that contains alleles of violet and white color flowers.
2. The violet flower color is dominant over the white flower color.

Final answer: The yellow color of the seed is dominant over the green color of the seed.