| 单词 | hertwig, oscar |
| 释义 | Hertwig, OscarHertwig, Oscar(ôs`kär hĕrt`vĭkh), 1849–1922, German embryologist. He studied medicine with Haeckel and Gegenbaur. In 1875 he established the fact that fertilization consists of the union of the nuclei of a male and a female sex cell. He studied the germ-layer theory (introducing the term coelom) and malformations of vertebrate embryos. |
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