Question

part a
the following is a hypothetical pedigree for a family, some of whose members have symptoms of leigh syndrome, caused by an mtdna mutation that reduces atpase activity. assume the mutation is fully penetrant.
a = ataxia (loss of motor function)
p = peripheral neuropathy
which of the six individuals in the last generation would transmit the condition to their offspring?
all of the individuals with a mother that has the disorder
all of the women in the last generation
all of the women with the disorder
all six individuals of the last generation
all of the individuals with the disorder
incorrect; try again; 5 attempts remaining
submit
previous answers request answer

Explanation:

Mitochondrial DNA (mtDNA) is maternally - inherited. So, individuals inherit mtDNA from their mothers. If a mother has the mtDNA mutation causing Leigh syndrome, she will pass it on to all of her offspring. In the context of the pedigree and the inheritance pattern of mtDNA - related disorders, all of the individuals with a mother that has the disorder will inherit the condition.

Answer:

all of the individuals with a mother that has the disorder