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

How are radioactive probes useful in dna fingerprinting, How are radioactiv...

How are radioactive probes useful in DNA fingerprinting? Radioactive probes bind to specific fragments in a DNA sample like a donor gene. A probe can identify which bacteria ha

Annexin v is a protein that binds to phosphatidylserine, Annexin V is a pro...

Annexin V is a protein that binds to Phosphatidylserine. Why is this useful in the lab? Does it have to do with testing whether the cell is in normal condition?

Define needle selection for suturing, Define Needle selection for Suturing ...

Define Needle selection for Suturing 1. Needle with a reverse cutting edge "the cutting edge is outside the curve" is preferable, because it prevents tearing, 2. Conventiona

Explain the resting membrane voltage, At 1 AM, a researcher places a health...

At 1 AM, a researcher places a healthy squid giant axon in a bath of normal squid physiological extracellular saline and internally perfuses the axon with normal squid intracellula

Saturated fatty acids required for dyslipidemia, Q. Saturated Fatty Acids r...

Q. Saturated Fatty Acids required for dyslipidemia? Saturated Fatty Acids (SFA): These are found mostly in animal fats as white marble-like solid at room temperature. Red meats

Pathophysiology and assessment of patent ductus arteriosus, Pathophysiology...

Pathophysiology   If  the ductus arteriosus does not close after birth, the higher pressure in the aorta than in the pulmonary artery causes the blood to flow from the aorta, t

Define colorimetric method - 2, Define Colorimetric Method - 2, 4 Dinitroph...

Define Colorimetric Method - 2, 4 Dinitrophenylhydrazine Method? We shall use this method in estimating vitamin C in a given sample in the laboratory. Here, let us look at the

Children with infective endocarditis, Among neonates, IE typically involves...

Among neonates, IE typically involves the tricuspid valve of structurally normal hearts and is associated with very high mortality rates.  It is likely that many of these episodes

Describe coping skills, Have you ever said, ‘I cannot cope up with this?' O...

Have you ever said, ‘I cannot cope up with this?' Or have you heard any one who is sick in your family saying, ‘I cannot cope with my sickness' or ‘I can not take care of this sick

Nuclear transfer method for gene transfer, Nuclear transfer method: Nucle...

Nuclear transfer method: Nuclear transfer will extend the range of species in which gene targeting will be possible and thereby provide better models to test treatments for human

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