Hormone Action|Phases Of Gametogenesis|Spermatogenesis|Sperm|OMR

Gametogenesis || Spermatogenesis

Phases Of Gametogenesis|Oogenesis|Spermatogenesis Vs Oogenesis|OMR

List three phases of gametogenesis.

Hormone responsible for spermatogenesis is

Gametogenesis|Spermatogenesis|Hormonal Control Of Spermatogenesis|OMR

Revision|Gametogenesis|Spermatozoa (Sperm)|Some Important Points|OMR|Female Reproductive System|Accessory Ducts|External Genitalia|OMR|Summary

Longest phase of spermatogenesis is :-

(a) Name the hormone that initiates spermatogenesis in humans. Describe the process of spermatogenesis in spermatogenesis in sequence mentioning the ploidy of the cells at each step. (b) Draw the diagram of a mature human sperm and label the parts that : (i) helps it reaching to the ovum . (ii) providing energy for it to reach the ovum. (iii) helping it to gain entry into the ovum.

Male Reproductive System|Female Reproductive System|Spermatogenesis|Sperms|Oogenesis|Menstrual Cycle|Fertilization And Implantation|Parturition And Lactation

Due to nondisjunction of chromosomes during spermatogenesis , sperms carry both sex chromosomes ( 22A +XY ) and some sperms do not carry any sex chromosomes ( 22A+ X ) , what types of genetic disorder appear among the offsprings ?