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 are the pros and cons of Varying workforce strategy
Explain your views on the 'international cultural impact' of the current banking crisis and support your answer. If it is your opinion that there is no 'international cultural impa
What are the issues of management does Google strategy 2010 needs to address? How could they be analysed and evaluated?
How does the use of music in political play a role in establishing a candidate's brand? Does a candidate's use of a song you like (or dislike) affect your overall impression of the
TRUE or FALSE. The Sergio Lumber Company manufacturers plywood. One step in the process is the one where the veneer is dried by passing through a huge dryer (similar to an oven) wh
What competencies do you feel are required of the HRM professional to become the strategic business partner and assist in leading an organization? Be sure to include scholarly s
1. A manufacturing company has a small production line dedicated to the production of a particular product. The line has four stations in serial. Inputs arrive at station 1 and the
Which market do customers who have purchased and are driving Audi automobiles represent? a. Target market b. Available market c. Potential market d.
DISCUSS THE ADVISABILITY OF USING MODULAR ASSEMBLIES IN MANFACTURING
A college professor told her students, "The purpose of a management course is to teach students about management, not to teach them to be managers." Do you agree or disagree with t
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