What are the two products of meiosis I in spermatogenesis?
The diploid number of primary spermatocytes is halved during meiosis. A primary spermatocyte is transformed into two secondary spermatocytes during meiosis I – these cells then in turn are converted into (1N) spermatids during meiosis II.
What is the product of spermatogenesis?
The products of spermatogenesis are the mature male gametes, namely the spermatozoa. The light microscopical evaluation of the ejaculate permits evaluation of the number of spermatozoa, shape and motility patterns and assessment of other cellular components.
Which of the following undergoes meiosis 1 division during spermatogenesis?
The primary spermatocyte then undergoes meiosis I to produce two haploid secondary spermatocytes. The haploid secondary spermatocytes undergo meiosis II to produce four haploid spermatids.
What happens in meiosis I?
In meiosis I, chromosomes in a diploid cell resegregate, producing four haploid daughter cells. It is this step in meiosis that generates genetic diversity. DNA replication precedes the start of meiosis I. During prophase I, homologous chromosomes pair and form synapses, a step unique to meiosis.
What is produced after meiosis I in oogenesis?
Usually, meiosis results in four daughter cells that are all haploid. However, after meiosis I of oogenesis, there are two daughter cells, one primary oocyte, and a polar body.
What is the product of spermatogenesis quizlet?
Actually, gametogenesis (oogenesis in the female and spermatogenesis in the male) produces four eggs and four sperm. The unequal cytoplasmic division that results in one egg and three polar bodies ensures that a fertilized egg has ample nutrients for its journey to the uterus.
What is the final result of spermatogenesis?
Two haploid spermatids (haploid cells) are generated by each secondary spermatocyte, resulting in a total of four spermatids. Spermiogenesis is the final stage of spermatogenesis, and, during this phase, spermatids mature into spermatozoa (sperm cells) (Figure 2.5).
What is the product of meiosis 1 in spermatogenesis?
The primary spermatocyte divides meiotically (Meiosis I) into two secondary spermatocytes; each secondary spermatocyte divides into two equal haploid spermatids by Meiosis II. The spermatids are transformed into spermatozoa (sperm) by the process of spermiogenesis.