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!
Q. How are the female gametes of gymnosperms formed? What is the relationship between this process and the concept of alternation of generations?
In the female strobiles (cones) there are megasporophylls (fertile leaves of the strobile) that restrain megasporangia. In the megasporangium the spore mother cell undergoes meiosis generating four haploid cells of which three revert and one gives birth to the functional megaspore. The functional megaspore by several mitosis forms the female gametophyte that restrain the oospheres (female gametes) of the plant. The female gametophyte is located within the megasporangium that has the micropyle, a tiny opening, all through which the pollen tube enters.
The procedure is related to the diplobiontic life cycle (alternation of generations) since the efficient megaspore generates the haploid stage of the plant (the female gametophyte).
Define briefly about the Selenium? The element selenium was discovered in 1817 in association with the element sulphur. However, selenium as an essential nutrient remained unre
why cerebellum more developed in mammals that jump or fly?
Etiology Fevers can be caused due to 1. Internal (endogenous) factors: This could be caused within the body. Examples are antigen-antibody reactions, malignant cancer, graf
In eukaryotes, the electron transport and oxidative phosphorylation occurs in the inner membrane of mitochondria. These processes re-oxidize the FADH 2 and NADH which comes
#question.what are the reason that arthropodans are abundant in nature.
What is Ridge morphology The implant-supported prosthesis is affected by the ridge morphology especially implant-supported overdentures which gain dual support from implants an
Exterrral and Internal Environment Let us try to understand the concept of environment with some examples. Can you identify the environment of a single carp fish in the pond? It
Absorption of proteins in infants In infants, permeability of the intestine appears to be greater than in later life, and some large protein molecules such as antibodie
Indications for Surgery : Once diagnosis of constrictive pericarditis is made and confirmed by chest X-ray, ECG, echocardiogram, CT, MRI scan, cardiac catheterisation and angio,
Define the characteristics that are seen in Rickets? The following characteristics are seen in fully developed cases of rickets: 1) In case of young infants, delayed closure
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