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!
Difference between Vegetative and Generative Cell
The cytoplasm of the vegetative cell and the generative cell is distinctly different. The generative cell is transparent and contains almost no RNA. The cytoplasm of vegetative cell is rich in RNA. The respective nuclei of these cells differ from each other morphologically and physiologically. The nucleolus in the vegetative nucleus is usually larger than that in the generative nucleus. The vegetative nucleus contains lower amounts of DNA, but its protein content increases after mitosis to about twice that of the generative nucleus.
The protein of the vegetative nucleus is more acidic in nature. The structure of the nucleus in vegetative cell resembles a resting nucleus and it does not normally divide. The generative nucleus is small but contains a higher amount of DNA. It may divide in the pollen grain itself or in the pollen tube to form two sperm nuclei. The pollen grains have reserve food in the form of carbohydrates, proteins and lipids. It appears that the nature of the reserve material in the pollen depends on the mode of pollination. Entomophilous pollen is rich in lipids and anemophilous pollen has mostly starch.
The cell cycle is controlled by a cyclically operating set of reaction sequences that both trigger and coordinate key events in the cell cycle • The cell-cycle control system is
What is a centimorgan? The Centimorgan, or The recombination unit, by convention is a distance between two linked genes that corresponds to 1% of recombination frequency of the
SPECIE S CONCEPT - According to Davis and Heywood species define as assemblage of individuals with morphological features in common and separable from other such assembla
What are the predicted cell morphology, cell arrangement and gram stain results for each of the follow? 1. Bacillus megaterium 2. Staphylococcus aureus 3. Serratia marcesc
Q What is the main source of energy for living beings on earth? The sun, center of our planetary system and star of the Milky Way galaxy (our galaxy), is the source of the ener
Q How is the circulatory system of birds characterized? Like every vertebrate, Birds, have a closed circulatory system. The heart is similar to the mammalian heart, having four
Studying life histories of insects Cut large rectangular holes in the sides of a big cardboard container and cover them with muslin folded over at the edges and gummed or paste
What is Weaning from Mechanical Ventilation? It is crucial to get the timing just right as to when to discontinue mechanical ventilation and extubate. If too early, this might
Explain several biological classification of animals There are several biological classification of animals. There are: i) Phenetic Classification ii) Natural Classificati
What is the monohybridism? The Monohybridism is the study of only one characteristic in the crossing of two pure individuals (hybridization) for that characteristic.
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