Question

Branching habit of sunflower plant is a ________ character.

• A. Recessive
• B. Dominant
• C. Codominance
• D. All of the above

Answer 1

Answer: (B)

Dominant

Branching habit of sunflower is a dominant character over unbranching habit. Single copy of gene of branched habit is sufficient to express itself. Since, the allele for branched habit can express itself in heterozygous condition; it is not a recessive character. Therefore, option A is incorrect. When both recessive and dominant traits are expressed in a heterozygous genotype; it is codominance.; but only branching habit of this plant is expressed in heterozygous condition. Hence, option C is also incorrect. A character can not be recessive and codominant both; hence the option D is also incorrect.

Thus, the correct answer is option B.