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!
Obturator - Ovule
An obturator is an outgrowth of the placenta or funicle or integument or style near the micropyle. It is presumed to guide the pollen tube to the micropyle. This tissue is either composed of thin-walled compact tissue or it is made up of loose hairy outgrowths. The cells of the obturator at the ultra structural level, show dense cytoplasm containing a copious number of ER, dictyosomes, and vesicles. The cells of the obturator produce a surface exudate and provide mechanical and chemical guidance to the growing pollen tube.
Figure: Obturator in Tetragonia tetragonioides
What is the acrosome of the sperm cell? How is it formed? The acrosome is a structure that has a great number of digestive enzymes, it is located in the anterior end of the spe
Normal 0 false false false EN-IN X-NONE X-NONE
Importance of Forests - Fuel Wood The forests are renewable resources which provide us a wide variety of commodities. For man, forests have been a source of recreation and the
If a fragment of nucleic acid has a nucleotide sequence TAC can one assert that it is a codon or an anticodon? A nucleic acid having a TAC sequence surely is not tRNA, it is DN
What is Metabolism ? The sum total of vital activities ( movements , nutrition, growth, respiration, excretion , reproduction, behaviour ,etc. Is the life of a living bei
ARTERIAL SYSTEM OF MAMMAL Basic plan from origin to distribution is similar in all vertebrates as per the mode of respiration. Main anterior aorta in terrestrial forms ar
TEST TUBE BABY - Ova are fertilized in laboratory dish (in vitra) containing a nutrient broth . It may be artificial insemination donor (AID) / Artificial insemination h
Let us first learn about learn the points counsellor has to keep in mind for positive outcome of the counselling. The counsellor achieves the positive outcome of counselling, couns
Spinal nerves: They take their origin from the spinal cord. They are the mixed nerves having both sensory and motor fibres. There are 31 pairs of spinal nerves. The se
Which of the following contributes to the degeneracy of the genetic code? A. The presence of 64 codons but only 20 amino acids. B. The ability of a single tRNA to bind to ma
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