Sex determination.

  • Guido Bacci
Date:
[1965]
Catalogue details

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Sex determination. Source: Wellcome Collection.

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    sexual and asexual reproduction 3 Mitosis is divided into the four stages of prophase, metaphase, anaphase and telophase but it must be remarked that direct observation on living material and motion pictures of cell divisions clearly demonstrate that the four phases \i/ -1:0— N1/ У \ % -1^ Fig. 1.1. Diagram of the different stages of mitosis. are not sharply limited and that mitosis is a continuous process. The passage from the so-called resting stage or interphase, when the nuclei show little or ill-defined structure, to the early prophase is also very difficult to establish. In Fig. 1.1 is represented what is called a diploid set consisting of two pairs of similar or homologous chromosomes, the members of each pair
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