Question

Extranuclear genome in chloroplast and mitochondria

Answer 1

Answer:

Chloroplasts and mitochondria each contain multiple copies of their own unique “chromosome” of genes. Generally, organelle DNA—and any variant phenotype encoded therein—is inherited through the maternal parent in a cross.

Answer 2

Answer:

The genomes of both mitochondria and chloroplasts code for all of their RNA species and some proteins that are involved in the function of the organelles. ... Each organelle contains several copies of the genome, and because there are-multiple organelles per cell, organelle DNA constitutes a repetitive sequence.