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 are hexoses, What are hexoses? What are some examples of hexoses with ...

What are hexoses? What are some examples of hexoses with important biological functions? Hexoses are carbohydrates made of six carbons. Glucose, fructose and galactose are inst

Nursing process - bronchial asthma, Nursing Process Assessment ...

Nursing Process Assessment History, precipitating factors, current medication, medication used to relieve asthma symptoms. Any recent changes in medication regimen.

Explain economic status of diet, Economic Status Economic Status  :  I...

Economic Status Economic Status  :  It is one of the important practical considerations to be kept in mind while  formulating  a diet prescription. During  an acute illness, a

How are poriferans characterized, Q. Concerning digestion how are poriferan...

Q. Concerning digestion how are poriferans characterized? Sponges are diverse from other animals since they present only intracellular digestion. Do they release digestive enzy

What are the types of reproduction that occur in fungi, What are the types ...

What are the types of reproduction that occur in fungi? In fungi there are asexual and sexual reproduction. Fungi replicate asexually by fragmentation, gemmation and sporulatio

Embryology in relation to taxonomy, Q. Embryology in relation to taxonomy? ...

Q. Embryology in relation to taxonomy? Embryological information has been used for taxonomic purposes at various levels of classification. You know of a very basic division of

What is biodiverse ecosystems, What are some economic applications that can...

What are some economic applications that can be generated by very biodiverse ecosystems? Very biodiverse areas show enormous economic potential. They can be a source of raw mat

Ecosystem control, Ecosystem Control Another important aspect of ecosy...

Ecosystem Control Another important aspect of ecosystem functioning that is how it maintains its ecological balance. By now, it must be obvious to you that an ecosystem is a d

How hiv infection works, How do antibody-based tests detect how HIV infecti...

How do antibody-based tests detect how HIV infection works? After the infection by the HIV the immune system starts the production of antibodies (primary immune response) again

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