Initiation of development - development biology, Biology

Assignment Help:

Initiation of Development - Development Biology

We know that the various events collectively called the activation programme. These events are directly related to the formation of the embryo. You have further learnt that the early response to the activation programme is the prevention of polyspermy. The late responses include many metabolic changes such as the activation of potassium ions and amino acid transport, an increase in the rate of the protein synthesis, initiation of DNA replication and several major regulatory events.

802_The Initiation of Development.png

These events include production of inositol triphosphate, diacyl glycerol, release of cytoplasmic free calcium ions and rise in hydrogen ion concentration. Figure summarizes the various events that occur during the activation programme of the egg. The egg which has been under a metabolic arrest before fertilization is released from this arrest on the entry of sperm. This initiates the long process of development into a new individual by active protein and DNA synthesis in the egg leading to the beginning of cleavage.


Related Discussions:- Initiation of development - development biology

What happens within the cell in the third interface period, What are the ev...

What are the events that mark the beginning and the end of the third interphase period? What happens in the cell in this period? The third interphase period is the G2. It star

Define drug effects on food intake - anorexic effect, Define Drug Effects o...

Define Drug Effects on Food Intake - Anorexic Effect? Have an anorexic effect, either as a direct effect of the drug on appetite e.g., some antibiotics or because of side-effec

Describe mitochondria and explain why it would happen, Describe what would ...

Describe what would happen if people lost all of their mitochondria and explain why it would happen.

Growth rate in animals, GROWTH RATE IN ANIMALS - Growth rate is differe...

GROWTH RATE IN ANIMALS - Growth rate is different at different periods of life. Growth period in human may be studied in 5 steps - (i) Prenatal - In gestation period fo

What two characteristics unique and different from others, In general compa...

In general compare and contrast the three functional classifications of joints according to movement. What are two characteristics that make synovial joints unique and different fr

Explain positive staining technique, Explain Positive Staining Technique? ...

Explain Positive Staining Technique? Here, a stain has a positively charged chromophore that gets attached to the negatively charged outer surface of the microbial cell and thu

#ALIMENTARY SYASTEM.., #in which part of alimentary canal oblique muscle fo...

#in which part of alimentary canal oblique muscle found?

Observation or inference for half and full saturation test, Define Observat...

Define Observation or Inference for half and full saturation Test? 1. Starch is precipitated by half saturation with ammonium sulfate whereas dextrin is not precipitated. This

What is implant therapy, What is Implant therapy Successful implant th...

What is Implant therapy Successful implant therapy requires systematic thorough and meticulous planning to determine the ultimate prognosis and end result that will satisfy th

Etiological factor of gastritis, Q. Etiological factor of gastritis? Th...

Q. Etiological factor of gastritis? They are same as acute. Generally acute gastritis if well treated gets healed in 3-4 days, however if untreated can progress to chronic gast

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