Mitochondrial DNA may also become defective due to mutation. During fertilization mitochondria is contributed by the egg cell. Hence mitochondrial disorders are inherited from the mother only.
Polygenic disorders arise due to mutations in more than one gene.
source
# Mitochondrial Disorder and Polygenic Disorders #Class 9
Thank you miss for EXPLAINING INTERESTING Lecture:-ROCKY FERNANDES
Enjoyed learning this chapter. Thanks a lot miss for taking tremendous efforts to make chapter more interesting and easy to understand for us.
Thanks miss nice concept
Miss you explained concept so nicely ! Thank you miss for lecture .
– vidnyani prabhu