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!
Abscisic Acid
Abscisic acid (ABA) as a naturally occurring growth inhibitor was discovered through independent investigations of different physiological phenomena in two different laboratories. F.T. Addicott and collaborators (University of, California) had been investigating natural substances which accelerate leaf abscission, whereas P.F. Wareing et al (University College of Wales at Aberystwyth) had been investigating natural inhibitors which appeared to be related to bud dormancy in woody plants.
Figure: Structure of Abscisic Acid
By 1965, these two paths of research converged upon the discovery that a single hormone was involved in both. The term Abscisic acid (ABA), was later proposed to denote this compound, which is a sesquiterpenoid (15-C) compound.
Describe cytokinesis in a plant cell. Vesicles produced by the Golgi apparatus fuse at the midline of the cell to form the cell plate, a cell wall that elongates to divide th
In the case story, Reggie presented with three typical signs of hip fracture-shortening, adduction, and the lateral rotation of the affected limb. What causes these signs? (HINT-th
Q. To increase the strength of the muscle work is the muscle contraction intensely increased? An increase in the strength of the muscle work is not achieved by increase in the
What are respiratory pigments? What is the respiratory pigment present in some arthropods? Which is the analogous molecule in humans? Respiratory pigments are molecules able t
can you give brief diagram of the tracheal system of cockroach?
Reaction specificity Some enzymes catalyze only one reaction acting on a specific substrate. Example: urease and catalase acts only on urea and hydrogen peroxide,
Q. In which period of meiosis does the pairing of homologous chromosomes occur? The pairing of homologous chromosomes is a very important step for meiosis because the rightness
What is the significance of lignin for the xylem formation? Lignin is vital because it is deposited on the cell wall of the xylem cells providing impermeability and rigidity to
Define about the Pseudosquint (Pseudo-false) Pseudosquint is the condition when despite the visual axis being parallel, there , appears to be a squint. Pseudosquint can be conv
What are the cells responsible for the production of antibodies? The cells that make antibodies, i.e., the cells of the humoral immune system, are the B lymphocytes (B cells).
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