Question

Leaf colour in Mirabilis jalapa is an example of

• A. Non-Mendelian inheritance
• B. Mendelian inheritance
• C. Chemical inheritance
• D. Both B and C

Answer 1

The correct option is A Non-Mendelian inheritance

Non-Mendelian inheritance is a general term that refers to any pattern of inheritance in which traits do not segregate in accordance with Mendel's laws. These laws describe the inheritance of traits linked to single genes on chromosomes in the nucleus. The inheritance due to the genes found in cytoplasm (mitochondria and chloroplast) is called cytoplasmic inheritance or non-Mendelian inheritance. The leaves of Mirabilis jalapa may be green, white or variegated. This is due to plastid inheritance.