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

What is linkage, Question Write a short note on the following: 1 D...

Question Write a short note on the following: 1 Dihybrid cross 2 Supplementary interaction 3 Maternal effect 4 Hardy Weinberg Equilibrium 5 What is Linkage? Ex

Placentation, In unilocular ovary with a single ovule tje placentation is??...

In unilocular ovary with a single ovule tje placentation is??

Determine the theory of evolution, What is the problem that the theory of e...

What is the problem that the theory of evolution and its rival theories try to solve? The problem that the theory of evolution, or simply evolution, and its rival theories try

Give some examples of cloning and molecular biology, Examples of cloning an...

Examples of cloning and molecular biology cloning may produce heterozygous individuals (as mother was heterozygous) and suggests a way to get pure breeding cats molecu

Molluscan kidney, Normal 0 false false false EN-IN X-...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Human respiratory system - thoracic cavity, THORACI C CAVITY - Thor...

THORACI C CAVITY - Thoracic cavity is air tight. On dorsal side vertebral column present. On ventral side sternum present. On lateral side 12 pairs ribs present. On p

Explain leaf silhouettes, Leaf silhouettes Place a leaf on a sheet of w...

Leaf silhouettes Place a leaf on a sheet of white paper and hold it securely with thumb or finger. Press a piece of natural or artificial sponge next to an ink pad. With short,

Draw on knowledge of electron distribution, While waiting at an airport , n...

While waiting at an airport , nail Campbell once overheard this claim, its paranoid and ignorant to worry about industry or agriculture contaminating the environment with chemical

Does thermal inversion occur in the winter or in the summer, Does thermal i...

Does thermal inversion occur in the winter or in the summer? Pollutant low altitude thermal inversion happens in the winter. In this period of the year the sun heats the soil l

Syncytial theory - metazoa, Syncytial Theory - Metazoa This theory su...

Syncytial Theory - Metazoa This theory suggests that the ancestral metazoan was at ,first Syncytial in structure but later became cellularised by formation of cell membranes

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