if work at shanghai jiao tong university is confirmed, it would overturn a long-held principle of reproductive biology: that female mammals are born with all their eggs.
如果上海交通大学的这一研究被证实的话这将推翻生殖生物学领域长期以来的一个定律:雌性的哺乳动物天生就拥有所有的卵子.
the controversial research challenges the long-held belief that most female mammals are born with a fixed number of eggs and are unable to make more throughout their lives.
这一尚有争议的研究成果,使一个早已被广为认同的观念受到新的挑战。 传统观念认为,雌性哺乳动物一生所制造的卵子的数量多寡都是天生的,不可能产生更多的卵子。
dosage compensation in female mammals is achieved by inactivating the transcription of one of the x chromosome.
雌性动物的剂量补偿效应是通过细胞中一条x染色体的转录失活来实现的。