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!
Organization in non-reduced embryo sacs
The fate of a nucleus in the embryo sac depends upon its position. Many irregularities in the disposition of nuclei in the early polarization have been recorded. The mature embryo sac otherwise shows a nod organisation with two synergids, three antipodals, an egg and pro endospermic cell.
Embryogenesis in non-reduced embryo sacs
Embryo development in these embryo sacs can take place as a consequence of pollination. Those associated with pollination are called eugamous, semigamous or pseudogamous and those that develop without pollination stimulus are termed parthenogenic.
Eugamy: Normal fertilization of the apomictic eggs takes place to produce the zygote.
Semigamy: The male gamete penetrates into the egg but does not fuse with the egg nucleus. Both the nuclei multiply independently but the division of the male nucleus stops early.
Unreduced Pseudogamy: The male gamete degenerates either inside or outside the embryo sac. Thus, the egg develops without fusion taking place.
EMBRYONI C MEMBRANES - Such animals are called amniota. Embronic membranes are of 4 types - (i) Yolk sac - It is formed below the embryo. It contains fluid (no yolk
Excretory organ of crustaceans and agama lizard
Determine about the Colloblast cell? The unique sticky discharge cells found in the tentacles of ctenophorans. They are used to capture prey, and although cnidoblasts resemble
Explain Prophylaxis with antimicrobial Prophylaxis with antimicrobials has decreased the incidence of surgical site infection after head and neck operations that involve an inc
What is Periotest Periotest: An electronic device originally developed by Schulte designed to measure the dampening effect or attenuation degree characteristics of the peri
mode of nutrition in zebra
Define etiological risk factors in cancer - Genetic Factors? Some cancers are programmed by genes to develop. Gene mutations result from one or more regulatory genes in the cel
a) How do viruses enter plant body and spread to long distances within it? b) Mention any two ways by which viruses spread from single plant to another.
Management Establish and maintain airway. Anticipate need for incubation if respiratory distress evident. Administer high humidified O 2 , using non-rebreather mask.
Are the arterial pulsations normal? Is the pulse volume normal or increased? Is there a discrepancy of pulsation in any of the four extremities? A careful evaluation of pulsati
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd