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!
SPERMEIOGENESIS / SPERMETOLEOSIS
It is the gradual differentiation of a stationary rounded and undifferentiated spermatid into an active and motile sperm.
The spermatids formed as a result of maturation divisions are typical undifferentiated animal cells containing mitochondira, golgi body and centriole but with a haploid set of chromosomes.
In spermeiogenesis following changes take place -
(i) Formation of acrosome
Formation of Acrosome
(ii) Formation of Perforatorium
A rounded small pit present below the nucleus, in this part G actin and Ca++ ions are present. This spaces is called perforatorium space.
(iii) Nuclear changes
(iv) Tail
(v) Formation of mitochondrial spiral and middle piece
(vi) Changes in the cytoplasm
(vii) Sperm sheath
Sperm sheath is form of mucopolysaccharide. It is also called glycocalyx. This sheath probably function as antigen.
Ask question #Minimum cell theory 100 words accepted#
MOSAI C THOERY - It was given by W. Roux. He studied the development of frog's egg. He destroyed one cells by a hot needle out of 2-cells formed as a result of first cleava
Determine the Functional Food in Europe? Functional foods are: Conventional/everyday foods consumed as a part of the normal diet; Composed of naturally-occurring co
Which of the following pairs of events in a human female occur at, or nearly at, the similar time during the menstrual cycle? A. High blood plasma LH levels and ovulation. B
describe the endoskeleton of fish?
The food components are in the form of solids, in solutions or in the form of colloids - sols or emulsions. The properties of these components determine the quality of food. The
Q. Do amphibians have direct development? In amphibians the embryonic development is indirect there is a larval stage. Q. How different are the respiration in adult amphibi
Explain the Sporangiophores features of Rhizopus? 1. Sporangiophores swell at the tip into a spherical knob like structure called sporangium. It has two zones. - Central dom
Lymphatic Vessels The function of lymphatic vessels is to aid in the return of interstitial fluid to intra-vascular volume. They assist with transport of lipids from th
Byproducts of the food industry, such as coffee residues, fruit pulp and cocoa meal are of low energy value, but are relatively high in nitrogen. In additional, animal excreta tend
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