与 «AMPHIASTER»相关的英语书籍
在以下的参考文献中发现
amphiaster的用法。与
amphiaster相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
a text book of experiemental cytology
According to Herlant (1918-19) the final amphiaster is composed of two separate
entities- — the aster normally associated with the female pronucleus and a
second aster which is an artificial product produced de novo in the cytoplasm by
...
2
Echinoderm studies 4 (1993)
Family ASTERODISCIDIDAE Rowe Asterodiscididae Rowe 1977: 190; 1985: 532
. Genus-group names: Amphiaster, Asterodiscides, Asterodiscus, Paulia,
Pauliella. AMPHIASTER Verrill Verrill, 1868: 372; Fisher 191 Ic: 168; Verrill
1914a: 294; ...
The sperm nucleus is rendered particularly conspicuous during the second
maturation division by the large amphiaster that accompanies it (fig. 4), both lying
in the yolk-free protoplasm. After the formation of the second polar body the
sperm ...
4
A Textbook of Experimental Cytology
According to Herlant (1918—19) the final amphiaster is composed of two
separate entities—the aster normally associated with the female pronucleus and
a second aster which is an artificial product produced de novo in the cytoplasm
by ...
5
Pamphlets on Biology: Kofoid collection
This represents the first stage at which an amphiaster definitely appears in the
centrifuged eggs. Its formation is thus delayed about 15 minutes. One would
suppose, then, that the appearance of the first polar body would be
correspondingly ...
6
Maturation, Fecundation, and Segmentation of Limax ...
The former cases would indicate that a minimum portion of the nucleolus
contributes to form the amphiaster ; the last, that they have no connection. The
author "therefore prefers to consider the participation of the germinative spot in
the ...
Edward Laurens Mark, 1881
7
BULLETIN OF THE MUSEUM OF COMPARATIVE ZOOLOGY
The former cases would indicate that a minimum portion of the nucleolus
contributes to form the amphiaster ; the last, that they have no connection. The
author " therefore prefers to consider the participation of the germinative spot in
the ...
The amphiaster in the nucleated fragment formed in the long axis of the fragment
and division as usual was at right angles to the surface of section. In both the
nucleated and non-nucleated fragments of No. 256, the first cleavage amphiaster
...
Carnegie Institution of Washington. Tortugas Laboratory, 1929
9
Papers from the Tortugas Laboratory of the Carnegie ...
The amphiaster in the nucleated fragment formed in the long axis of the fragment
and division as usual was at right angles to the surface of section. In both the
nucleated and non-nucleated fragments of No. 256, the first cleavage amphiaster
...
Carnegie Institution of Washington. Tortugas Laboratory, 1928
10
Studies from the Department of Anatomy
Figure 32 is a side view in optical section of the inner region of a living sand-
dollar egg in the amphiaster stage. The hyaline rays, extending from the hyaline
centrospheres, give to the granular cytoplasm a streaked appearance which is
finer ...
Cornell University. Medical College. Dept. of Anatomy, 1923
