Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Molecular Response to Thyroid Hormones during Metamorphosis
Thyroid hormones can cause obtainable tissues to break down or can remold the tissues to their adult function. The liver cells of the tadpole for instance are not destroyed and replaced during metamorphosis. In place of their structure is remodeled. This change is accompanied by dramatic raise in ribosomal and messenger RNA synthesis. The rate of protein synthesis also increases nearly 100 folds in four hours of thyroid hormone stimulation. Many of the new mRNAs are those that code for new functions of the liver. The main increase in protein synthesis appears to come from the transcription of new m-RNAs.
Carbamoylphosphate synthase (a urea cycle enzyme) is synthesized after the burst of RNA synthesis. Experiments have illustrated three types of molecular response to thyroid hormone. One set of genes increases its low level of transcription in reply to either natural or thyroxine induced metamorphosis. Another set of genes decreases its rate of transcription, whereas a third set of genes remains unaffected by thyroid hormones. Mori and Coworkers (1979) have illustrated that much of the increase in Carbamoylphosphate synthase can be attributed to increased transcription from the gene. So metamorphosis appears to some extent to be controlled at the transcriptional level. Other evidences also indicate the capability of thyroid glands to regulate gene activity at the level of transcription. This does not mean that transcription is the only level of gene regulation, operative during metamorphosis, but it is obviously an important one.
What issues can organizations experience when implementing large database systems and data warehouses? What best practices would you recommend to an organization to mitigate these
String Diagram: String diagram is a simple tool for analyzing and designing work space such that movement can be minimized. The basic diagram is a scale plan or
After working for 30 years, Ramjee Somjee Dutt opted for VRS and started a courier company and did
What are some different companies that could benefit from using this type of inventory management and why?
Reflect upon the IT strategies that are used to encourage economic development. Select two strategies and discuss how economic factors affect the strategies that a government may u
What kind of control systems are being used to measure the performance of hospitals and their different kinds of employees such as doctors and nurses? What are the pros and cons
The local convenience store makes personal pan pizzas. Currently, their process makes complete pizzas, fully cooked, for the customer. This process has a fixed cost of $20,000, and
Why do you think Mary parker Follett's ideas tended to be popular with business people of her day but were ignored by management scholars? Why are her ideas appreciated more today?
Which among the following frameworks of ethics becomes less practical with an increase in the number of people, animals, etc. that could be affected by decisions made?
1. Investigate: Consider the operations of your own organisation (or another with which you are familiar) and report on how its operational processes are designed. From your readi
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd