The genotype of plants with the recessive phenotype of wrinkled seeds is always homozygous. However, when an individual plant expresses the dominant phenotype of round seeds, it can have either the genotype RR or Rr. How could you test whether the dominant individual is a true breeder (RR)

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.