Question
Indicating the name and respective ploidy of each involved cell how can the formation of sperm cells from germ cells be described?
Answers
The formation of sperm cells, or spermatogenesis, begins with a germ cell called spermatogonium (2n) that suffers mitosis and gives birth to the spermatocyte I (2n). The spermatocyte I undergoes meiosis I and generates two spermatocyte II (n) that then undergo meiosis II and produce four spermatids (n). Each spermatid undergoes a maturation process called spermiogenesis and four sperm cells appear.   Your Comment




  • Contributors: *,


Search
Can you Answer!!
  • Q What are the advantages of Distributed Processing
  • Q Describe the differences between a data warehouse and data mart?
  • Q Elarometer was invented by
  • Q P.S. Kayal has won gold in the 8th Modern Pentathlon National Championship – 2017. She hails from which state/UT?
  • Q If you intend to turn left, are you required to give a signal?
  • Q How will you write a code for accessing the length of an array without assigning it to another variable?
  • Q Which of the following is not valid version of MS Office?
  • Q What is a D-type flip-flop? Construct a D-type latch using RS inputs.
  • Q By whom was the Sarak-i-Azam which ran from the Indus to Sonargaon (in Bangladesh) built?
  • Q What is group technology? What are the important benefits derived from group technology concept in manufacturing?
  • Q Could you explain PPC with the help of a diagram?