Cytokinins and Cell Division, Biology

Assignment Help:

α- amylase activity by GA3 - Dormancy

Of the enzymes required for the digestion of starch α-amylase appears immediately after the start of germination. It was found that if the embryo was removed no a-amylase appeared, however, if very low concentations of GA3 were added to the seed the production of digestive enzyme proceeds. The work over the last 30 years proved the fact that GA3 initiates action at transcriptional and translational levels. Not only activation of pre-existing m-RNAs coding for a-amylase but synthesis of m-RNA also takes place after the exposure of seeds to GA3.

Cytokinins and Cell Division

Cell division involves synthesis of new DNA, RNA and a host of cell proteins in interphase (cell cycle S1 and S2). All these events are promoted by cytokinins. Cell division also means synthesis of a number of enzymes that are needed for the synthesis of cell wall and middle lamella.


Related Discussions:- Cytokinins and Cell Division

Female reproductive system, FEMALE REPRODUCTIVE SYSTEM - In female mamm...

FEMALE REPRODUCTIVE SYSTEM - In female mammals the female reproductive system characteristically comprises of the ovary, uterus, placenta, vagina and vulva.

What are energy allowance, Energy Allowance: Energy Allowance: The  p...

Energy Allowance: Energy Allowance: The  patient's requirement for  energy  varies with the physical activity and physiological condition. For instance, consider a person con

Regulation of senescence, Regulation of Senescence Senescence is a par...

Regulation of Senescence Senescence is a part of a developmental sequence of events and has to be a controlled process. You must have seen that if you cut twigs having leaves

Locomotion in arthropoda, Locomotion in Arthropoda The Arthropods are...

Locomotion in Arthropoda The Arthropods are characterized by the existence of some special features which can be considered key to their success. These involve a rigid exoske

Energy, Energy Contrary  to matter.  Energy neither occupies space, nor...

Energy Contrary  to matter.  Energy neither occupies space, nor possesses mass. Hence it is defined, not on   physical ,but on operational or functional basis as the force whic

Synapse, what is a synapse and what does it do?

what is a synapse and what does it do?

Plants - rapidly flowing waters, Plants - Rapidly Flowing Waters Among...

Plants - Rapidly Flowing Waters Among the plants only small, well attached forms, such as sessile algae can survive here. Thus, due to the presence of only a few plants, the n

What is the energy source used in active transport, What is the energy sour...

What is the energy source used in active transport through biological membranes? The energy essential for active transport (against the concentration gradient of the transporte

What is the function of the feet in molluscs, Q. What is the function of th...

Q. What is the function of the feet in molluscs? How is the mollusc foot related to the name given to the classes of the phylum? The mollusc foot has the function of support, l

Explain the filtration - air sampling, Explain the Filtration - Air Samplin...

Explain the Filtration - Air Sampling? Filtration - Air stream may also be filtered through a micro-filter.  Microorganisms are released from the filter using a suitable diluen

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd