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

Features of estuaries, Features of Estuaries The physicochemical prop...

Features of Estuaries The physicochemical properties of the estuaries have large variation in several parameters and this often creates stressful environment for organisms. T

How can you convert 147.05mg%, How do you convert 147.05mg% of plasma gluco...

How do you convert 147.05mg% of plasma glucose to mM/L please show work.

Metabolism, METABOLISM  - Word given by Shwann . It includes bio-ch...

METABOLISM  - Word given by Shwann . It includes bio-chemical reactions occur in body may be constructive or destructive. It includes -                         Anabo

Explain the sinus perforations, Sinus Perforations  The maxillary antru...

Sinus Perforations  The maxillary antrum can sometimes be inadvertently penetrated. Through careful pre-operative planning using radiographs, including axial scans, this compli

What are the main interspecific ecological interactions, Q. What are the ma...

Q. What are the main interspecific ecological interactions? The major harmonious interspecific ecological interactions are: protocooperation, commensalism and mutualism. The ma

What is the resting membrane voltage of the neuron, What is the resting mem...

What is the resting membrane voltage of the neuron A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM.  The neuron is healthy.  At

Explain phylum tracheophyta, Phylum Tracheophyta Tracheophytes mean vas...

Phylum Tracheophyta Tracheophytes mean vascular plants. Tracheophyta includes ferns, the gymnosperms and the flowering plants. They have appeared some 400 million years ago, an

Define the disorders due to the iodine deficiency, Define the Disorders due...

Define the Disorders due to the iodine deficiency? Mild goitre, i.e., a larger thyroid gland than normal. The mildest form of goitre ranges from those only detectable by to

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