Which of the following statements is true?
Traits showing non-Mendelian extranuclear inheritance are always inherited from the mother.
The molecules used to carry out photosynthesis are encoded in nuclear DNA and mitochondrial DNA.
cpDNA is found in the chloroplasts.
Molecular evidence suggests that DNA sequences may have been transferred between mtDNA and nuclear DNA.
Variegated four o'clock leaves have white patches among the green areas due to a mtDNA mutation that blocks electron transport.
五个选项,单选