Question

What are the answers to both parts

A woman has a mutation in a mitochondrial gene that encodes a subunit of the aerobic respiratory Complex IV. What percentage of her male children are expected to harbor this same mitochondrial abnormality? Mitochondrial genetic analysis of the father of these children has revealed that he does not have this genetic mutation. Choose one: O A. 100% of male children will have the mitochondrial genetic mutation. O B. 75% of male children will have the mitochondrial genetic mutation. O C. 50% of male children will have the mitochondrial genetic mutation. O D. 25% of male children will have the mitochondrial genetic mutation. O E. 0% of male children will have the mitochondrial genetic mutation. Part 3 (1 point) For the genetic mutation described in Part 2, what biochemical process would be most directly impacted by this mutation? Choose one: O A. fermentation O B. citrate cycle O C. electron transport chain O D. glycolysis

Answer 1

2) mitochondria is double membrane-bound organelle in the eukaryotes, the mother gives the mitochondria to the progeny through the egg, so if the mother has a mutation in the mitochondrial DNA all of her progenies will inherit that mutation. so the answer is A) 100% of male children will have the mitochondrial genetic mutation.

3) the mutation is in a gene that codes for the subunit of complex IV. different complexes on the inner mitochondrial membrane is involved in the electron transport chain so the electron transport will be affected by the mutation.

glycolysis and fermentation occur in the cytosol, TCA cycle occurs in the mitochondrial matrix.

so the answer is C) electron transport chain.