INDS 211 Lecture Notes - Lecture 2: Spermatogenesis, Spermatid, Spermatocyte
2 Jan 2019
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Each layer corresponds to different generation of cells that can be grouped into three main phases. The pale cell is true stem cells that has will divide by mitosis serveral times, the dark cell is arrested, reserve stem cell. Spermatocytes: in the luminal compartment, we find a layer of big cells: primary spermatocytes (called. Pachytene spermatocytes), they"re very prominent: look for the spotty chromosome structure of these in. Early spermatid: big, round easy to identify, relatively condensed round nucleus that"s centrally located. You might confuse an early spermatid with a secondary spermatocyte (which is not in the diagram), but he won"t which becomes the residual body, allowing the sperm to be more streamlined . cross-section. ask us to distinguish between them. Late spermatid: elongated, almost w/shape of spermatozoa. Meiosis review: you want to give offspring half of mom"s and dad"s dna with recombination. 23 pairs of homologs (1 from mom, 1 from dad).
