Spermatogenesis is the formation of sperm in seminiferous tubules of testis. It has two stages : (i) Formation of Spermatids (ii) Spermiogenesis. In the formation of spermatids, the sperm mother cells or Spermatogonia produce spermatids and in spermiogenesis, the spermatids are transformed into sperms or spermatozoan.
Complete answer: Spermatogenesis is the process of synthesis and the development of sperm cells and it occurs in the male reproductive tract or organ called the testes. Sperm cells produced in the testes are called the seminiferous tubules. Spermatogenesis is classified into three phases. They are proliferation, meiosis and spermiogenesis.
In naked mole-rats, only one male is reproductively active, and spermatogenesis is suppressed in the other males of the colony (O'Riain et al., 2000). This single male dominance example is a classic case of reducing sperm competition, leading to simplified, polymorphic, and slow-swimming spermatozoa (Van Der Horst et al., 2011 ).Process of Spermatogenesis Stage 1: The original diploid spermatogonium located in the seminiferous tubules has twice the number of chromosomes, Stage 2: The chromatids exchange genetic information by the process of synapsis, before dividing through meiosis into Stage 3: In the second meiosis
During spermatogenesis, many cellular events ensure that diploid spermatogonia (2n) can become haploid spermatids (1n). Some of these events are described in (a–c). (a) Mitosis. Type A spermatogonia undergo either self-renewing replication or differentiation into intermediate and type B spermatogonia.
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