Which of the following are true about mitochondrial inheritance?
A) There is heteroplasmy
B) The mitochondria segregate randomly as cells divide
C) Mitochondria are maternally inherited
D) There are approximately 1000 mitochondrial DNA (mtDNA) molecules per cell
E) All of the above

Question

Quizplus · Accepted Answer

All of the statements about mitochondrial inheritance are true. Heteroplasmy refers to the presence of more than one type of mitochondrial DNA within a cell. Mitochondria do segregate randomly during cell division, which can affect the distribution of different mitochondrial genotypes among cells. Mitochondrial inheritance is primarily maternal, meaning that the mitochondria in the offspring come from the mother's egg cell. Lastly, it is accurate that there are approximately 1000 mitochondrial DNA molecules per cell, though this number can vary depending on the cell type and its energy demands.

Which of the Following Are True About Mitochondrial Inheritance