Difference between Gametogenesis and Embryogenesis

Both embryogenesis and gametogenesis are two consequential processes pertaining to sexual reproduction. Gametogenesis is different from embryogenesis as mitosis and meiosis occurs in gametogenesis while in embryogenesis only mitosis takes place. Also, embryogenesis is responsible to form and develop the embryo while gametogenesis is responsible for producing male and female gametes.

Gametogenesis

  • It is responsible for haploid sex cell formation
  • Its two main phases are – maturation and cell division
  • In plants it takes place in gametangia while in animals it takes place in gonads
  • It is of two types depending on the type of sex cells produced – spermatogenesis and oogenesis

Embryogenesis

  • From a unicellular zygote, a multicellular embryo development and forms
  • It commences with the uniting of the male and female gamete to produce the zygote, a diploid cell
  • The embryonic phase in humans last up till 11 weeks post which the fetal development commences
  • Four phases of embryogenesis include – cleavage, gastrulation, neurulation, and organogenesis

Difference Between Gametogenesis and Embryogenesis

Following are some of the important differences between Gametogenesis and Embryogenesis

Gametogenesis Embryogenesis
What does it mean?
Mature haploid gametes develop from diploid or haploid precursor cells Formation and development of embryo
What is formed?
Male and female gametes Embryo develops and forms from zygote
Occurrence
In animals in the testis and ovaries. In plants in the antheridia and archegonia In animals, in the female reproductive system, in plants in the female gametophyte
Stage of fertilization in which it occurs
Pre fertilization Fertilization is followed by embryogenesis
Cell division
Both mitosis and meiosis Only mitosis
Leads to the formation of
Haploid gametes Diploid cells of embryo
Types
Two types – spermatogenesis and oogenesis Results in organogenesis
4 steps include
Gametogenesis, gametidogenesis I, gametidogenesis II, Maturation Cleavage, gastrulation, neurulation and organogenesis

These were some differences between Gametogenesis and Embryogenesis. Explore other differences important for NEET at BYJU’S.

Also see:

 

Leave a Comment

Your email address will not be published. Required fields are marked *