In one extreme case, a single ribosomal protein gene known as RPL21 has spawned more than 140 pseudogene copies.是什么意思_In one extreme case, a single ribosomal protein gene known as RPL21 has spawned more than 140 pseudogene copies.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句