Question

Find out the correct statements regarding interaction of genes A. Epistasis is a non-allelic interaction.
B. In complementary gene interaction both genes are necessary for the production of particular phenotype.
C. Single dominant gene is enough to produce a character in duplicate gene interaction.
D. Any one of the dominant genes is necessary for the production of flower color in complementary gene interaction.
E. Pleiotropic genes control single characters in certain cases. Choose the correct answer from the options given below:

• A. A, B, C
• B. B, C, D
• C. C, D, E
• D. A, B, D

Hint:

Pleiotropy means one gene controls multiple traits.

Answer 1

The Correct Option is A

Concept:
Interaction of genes explains how different genes influence the expression of characters.
Step 1:
Epistasis occurs between non-allelic genes. Thus A is correct.
Step 2:
In complementary gene interaction, both dominant genes are required to express the phenotype. Thus B is correct.
Step 3:
In duplicate gene interaction, presence of any one dominant gene can produce the character. Thus C is correct.
Step 4:
Statement D is incorrect because complementary interaction requires both dominant genes. Statement E is incorrect because pleiotropic genes control multiple characters, not single character.
Step 5:
Correct statements are: \[ A,\quad B,\quad C \] \[ \boxed{\text{Correct Option = (1)}} \]