What is meant by cytoplasmic inheritance ?

Explanation

(i) DNA is the universal genetic material
(ii) Genes located in nuclear chromosomes follow, mendelian inheritance.
(iii) But certain traits are governed either by the chloroplast or mitochodrial genes. This phenomenon is known as extra nuclear inheritance.It is a kind of Non-Mendelian inheritance.
(iv) Since it involves cytoplasmic organelles such as chloroplast and mitochondrion that act as inheritance vertors, it is also called Cytoplasmic inheritance.
(v) It is based on independent, self replicating extra chromosomal unit called plasmogene located in the cytoplasmic organelles, chloroplast and mitochondrion.