Related Experiment Video
Updated: Aug 15, 2026

Cytological Analysis of Spermatogenesis: Live and Fixed Preparations of Drosophila Testes
Published on: January 20, 2014
[Ultrastructure of human aneuploid spermatozoa]
1Zakładu Radiobiologii i Biologii Komórki Akademii Medycznej im. Karola Marcinkowskiego w Poznaniu.
Abstract:
The goal of the study was to evaluate ultrastructural changes in aneuploid human spermatozoa. The sperm was collected from seven males with teratozoospermia. In all patients ultrastructural changes in spermatozoa were noted: inappropriate nuclear chromatin condensation, changes in the formation of the acrosome and pathology of the mobile apparatus. These changes suggest a defect in spermatogenesis at the level of spermatide or spermatocyte. Ultrastructural spermatozoa studies may reveal new elements related to factors responsible for decreased sperm fertilizing ability.
More Related Videos
09:40A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model
Published on: February 6, 2018
09:59Transillumination-Assisted Dissection of Specific Stages of the Mouse Seminiferous Epithelial Cycle for Downstream Immunostaining Analyses
Published on: October 7, 2020
Related Concept Videos
Meiosis I
Spermatogenesis
Fertilization
Lampbrush Chromosomes
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...
Spermatogenesis
The process of spermatogenesis can be divided into mitosis, meiosis, and spermiogenesis. During mitosis, the spermatogonia or stem cells divide to produce two identical daughter cells, type A and B spermatogonia. Type-A...
Sperm Structure and Semen Composition