Which of the following statements is true?

题目

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

答案

1.性状表明,非孟德尔的核外遗传来自于母体.不确切,对于核内的不是,但对于胞质就是,由于卵子比精子大很多,所以对于mtDNA来说,基本还是母体遗传的多,但并不是说父体就不给予.2.用于进行光合作用的分子均由核DNA和mtDNA...