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.
A quality team at Milburn Textiles has been charged with setting up control charts to monitor a key dyeing process that has been improved and now stable. The ideal temperature for
I recently rented a book and it turns out that I no longer need to be in the class that requires that book. The book just got here today and I have not opened the package at all. I
Dalton and Carla run a small bicycle shop called "D n C"Bicycles. They must order bicycles for the coming season. Orders for the bicycle must be placed in quantities of twenty(20).
operation setback chart
What do Klein Felds efforts at Siemens tell you about the difficulties of restructuring organizations?
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
Operations Sequence Analysis Being an early approach to process layouts operations sequence analysis develop a good scheme for arrangement of department graphically analysis t
After working for 30 years, Ramjee Somjee Dutt opted for VRS and started a courier company and did
During the campus Spring Fling, the bumper car amusement attraction has a problem of cars becoming disabled and in need of repair. Repair personnel can be hired at the rate of $20
Norms are the unwritten rules that specify appropriate and expected behaviour in teams. Which of the following statements is most true about norms in a team? a. It is best to not i
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