Spermatogonia - spermatozoa, Biology

Assignment Help:

Spermatogonia - Spermatozoa

In a cross-section of the seminiferous tubule you will find that spermatogonia are located just inside the basement membrane of the tubules, and the series of maturing stages i.e. from spermatogonia-spermatozoa, occur towards the lumen where mature sperms are released. Studies have indicated that in man it requires' about 74 days for a spermatogonium to transform into functional spermatozoa. The rate of germ cell development is constant for a given species and strains of mammals, and that this rate cannot be accelerated by hormones.

Cytological observations suggest that germ cells must move forward during their differentiation; if unfavourable environment make it impossible for them to pursue their differentiation at the normal fate, they degenerate and are eliminated from the system. Although hormones do not accelerate the rate of germ cell differentiation. they must contribute to the creation of favourable environments for their transformation into the spermatozoa.


Related Discussions:- Spermatogonia - spermatozoa

Ringworms (cutaneous mycoses), Ringworms (cutaneous mycoses) Cutaneous...

Ringworms (cutaneous mycoses) Cutaneous mycoses – also called dermatomycoses, occur worldwide and represent the most common fungal diseases in humans. The dermatophytes are th

Name the restricted food items, Restricted Food Items Foods to be avoid...

Restricted Food Items Foods to be avoided by diabetic patient are carbohydrate and fatty food. Carbohydrates are classified into sugars and starches. As you have studied in und

Is it possible x chromosome of women come from father, Is it possible that ...

Is it possible that an X chromosome of a woman can have come from her father? It isn't only possible that an X chromosome of a woman is from her father, it is certain. Each wom

How to use a key, Q. How to Use a Key? The use of a key is analogous to...

Q. How to Use a Key? The use of a key is analogous to travelling a high way, that forks repeatedly, each fork having roadside directions. If a traveller follows the proper dire

Explain protoderm in primary growth in shoot, Explain Protoderm in primary ...

Explain Protoderm in primary growth in shoot? The protoderm is one of the so-called "primary tissues" because it is formed first during germination and subsequent bud growth an

Which germ layer originate liver and the pancreas, Q. From which germ layer...

Q. From which germ layer do the liver and the pancreas originate? What are other organs and tissues made from that germ layer? The pancreas and the liver are originated from th

What is the estimated percentage of water in the human body, Q. What is the...

Q. What is the estimated percentage (in mass) of water in the human body? Is this percentage expected to be larger in the adult or in the old individual? Approximately 65% of t

Material basis of primitive life, Material Basis of Primitive Life: In ...

Material Basis of Primitive Life: In  the primitive society, human beings invented tools for catching animals, and for collecting, transporting and even preparing food.  They l

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd