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!
Properties of Phytochrome
Phytochrome is a chromoprotein: this means it is composed of a protein and a chromophore. The chromophore is actually attached to the protein and is responsible for its-colour and light absorption. It is possible to isolate phytochrome in absolutely pure form by following the procedures of protein purification. The phytochrome in test-tubes also shows similar absorption characteristics. It absorbs red light (maximum absorption occurs at 660 nm wavelength) and on conversion, far-red light (maximum absorption occurs in far-red region at 730 nm). A typical absorption spectrum of phytochrome is shown-in figure. It is a soluble protein and is present in the cytoplasm. It is believed that Pfr form may be associated with the membranes. The intact phytochrome protein has a molecular weight of 124,000 daltons. .The total amino acid sequence of the protein is also known and, using recombinant DNA technology, the gene coding for phytochrome has been isolated.
Figure: Absorption spectrum of phytochrome in vitro. Phytochrome was purified add its Absorption spectrum was measured by a spectrophotometer. When Pr was irradiated with red light, the absorption spectrum (dotted line) was obtained. This shows the conversion of Pr to Pfr.
Which is the extraembryonic membrane whose function is to store nitrogen wastes of the embryo? Is this function present in placental mammalian embryos? The allantois is the ext
habitat, habit, cell wall chemistry, reason why cell wall like this of Archaebacteria , eubacteria,fungi,algae,bryophytes ,pteridophyes, gymnosperms , angiosperms..
1. Northern blotting The quantity of rna species can be quantified by calculating the quantity of rna through northern blotting which provide size and sequence information
SEXUA L REPRODUCTION 1 . Amphigony - Zygote is formed. (i) Syngamy Fusion of gametes. (a) Endogamy - It involves self fertilisation. e.g.
MR means medical representative. Medical rep has to sell products of pharma companies or drug manufacturers. He has to go to doctors and medical shops to sell drugs and promote dru
What is shunts in Congenital Heart Surgery? Shunts : Blalock Shunts are connections between systemic arteries such as a subclavian arteiy with its respective pulmonary arteiy
The presence of advanced plaques of types IV and Va allows clinical symptoms to develop. Atherosclerosis is a biphasic disease; in the first stage, advanced plaques are generated b
Ask quesouou9ution #Minimum 100 words accepted#
Q. Can you define termination of the stress Test? Test should be terminated when: 1) PVCS develop in pairs or with increasing frequency or when ventricular tachycardia devel
Write a short note on muscular system? The muscular system provides mobility and support to the body. There are three types of muscle tissue: skeletal, smooth, and cardiac. Th
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