In eukaryotic cells DNA is in a nucleus surrounded by a nuclear membrane, but in prokaryotic cekks it is in a numclear region not surrounded by a membrane.是什么意思_In eukaryotic cells DNA is in a nucleus surrounded by a nuclear membrane, but in prokaryotic cekks it is in a numclear region not surrounded by a membrane.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句