Boi (green) and Hedgehog (Hh, red) are expressed in apical cells of the Drosophila wild-type germarium (CIL# 13744). In the absence of boi (boi[e] mutant), Hh is redistributed from apical cells to the...

Boi (green) and Hedgehog (Hh, red) are expressed in apical cells of the Drosophila wild-type germarium (CIL# 13744). In the absence of boi (boi[e] mutant), Hh is redistributed from apical cells to the...

Boi (green) and Hedgehog (Hh, red) are expressed in apical cells of the Drosophila wild-type germarium (CIL#13744). In the absence of boi (boi[e] mutant), Hh is redistributed from apical cells to the ...

Hedgehog (Hh, red) is transcribed in apical cells of the Drosophila wild-type germarium (CIL# 13755, 13744). In the absence of boi (boi[e] mutant), Hh protein is redistributed from apical cells to the...

Hedgehog (Hh, red) is transcribed in apical cells of the Drosophila wild-type germarium (CIL# 13755 and this image). In the absence of boi (boi[e] mutant), Hh protein is redistributed from apical cell...

In the absence of boi (boi[e] mutant), Hedgehog (Hh, red) is redistributed from apical cells to the extracellular space of the local follicle stem cell niche (CIL# 13744, 13745). Expression of a mutan...

Boi (green) and Hedgehog (Hh, red) are expressed in apical cells of the Drosophila wild-type germarium. In the absence of boi (boi[e] mutant), Hh is redistributed from apical cells to the extracellula...

Figures 206 (upper) and 207 (lower) from Chapter 6 (Golgi Apparatus) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. During development of the acrosome in the chinchilla spermatid, the transitional zon...

A colorized scanning electron micrograph of a human egg, which is the huge cell colored yellow at the bottom of this image. The follicle cells that surround it (top) send out long projections that pen...

An oocyte in a mature follicle. During the menstral cycle in females the ovary produces oocytes, which develop in follicles. As the follicle matures it increases in size, different cell types are recr...