Oogenesis, Biology

Assignment Help:

Oogenesis

Oogenesis is the formation of ovum from oogonial cells that are formed in the ovary from primordial germ cells. And as in spermatogenesis it involves meiosis to produce haploid ovum. You have learnt in the section on spermatogenesis that the differentiation of sperm occurs after the meiotic events. In oogenesis the process of first meiotic division is very prolonged; and it is during this process that growth and differentiation of oocyte take place. In many animals most events related to oocyte differentiation occur during prophase I of first meiotic division. In animals which produce yolk-laden eggs, this phase is divided into

  • Previtellogenesis (before yolk production)
  • Vitellogenesis (yolk deposition)
  • Post Vitellogenesis (after yolk deposition)

Related Discussions:- Oogenesis

Sample titration - estimation of vitamin c in chillies, Define Sample Titra...

Define Sample Titration - estimation of vitamin c in chillies? Take a clean and dry large chilli and weigh it. Note the weight of the chilli. Grind the chilli to a fine paste i

Genetics , Genetics Genetics is the study of heredity. It is an ancien...

Genetics Genetics is the study of heredity. It is an ancient discipline. At least 4000 years ago, in Sumeria, Egypt and other parts of the world, farmers recognized that they

How many will be homozygous for dominant allele, In a Population that is in...

In a Population that is in Hardy-Weinberg equilibrium, the frequency of the recessive Homozygous genotype is 0.49. The frequency of individuals Homozygous for the Dominant allele i

Explain soy protein concentrates - protein concentrates, Soy Protein Concen...

Soy Protein Concentrates The Association of American Feed Control Officials, Inc. (AAFCO) specifies soy protein concentrates as follows:  "Soy Protein Concentrate is organiz

Biological significance of incompatibility, Biological Significance of Inco...

Biological Significance of Incompatibility Both interspecific and intraspecific incompatibility determines the degree of inbreeding and out breeding of plants. Self-incompati

What are polyclonal antibodies, Antibodies of dissimilar specificities, whi...

Antibodies of dissimilar specificities, which react to the same antigen, are known as polyclonal antibodies.

What is serum sickness, When an individual is exposed to foreign serum anti...

When an individual is exposed to foreign serum antigen then a combination of symptoms are produced which is known as serum sickness.

Describe the process of crassulacean acid metabolism, Describe the process ...

Describe the process of Crassulacean acid metabolism. a) How is it advantageous to plants? b) Describe the major steps in Krebs cycle. Why is this cycle also called citric a

Explain about biodiversity, How do biodiversity, the total number of living...

How do biodiversity, the total number of living beings and the biomass respectively vary during the ecological succession? Biodiversity, the number of living beings and the bio

.Botany, 57. While planning for an artificial hybridisation programme invol...

57. While planning for an artificial hybridisation programme involving dioecious plants, which of the following steps will be irrelevant A usting of pollen on stigma B Collection

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd