Y-linked traits in humans, Biology

Assignment Help:

Y-Linked traits in humans

Any gene that occurs exclusively on the Y chromosome is said to be holandric and it is not expressed in females. Such a Y-linked gene normally occurs in males and is transmitted only from father to son - holandric inheritance. Only a few Y-linked genes have been identified uptil now. One is the histocompatibility gene, known as the H-Y gene which is present on the short arm of the Y chromosome. Another important Y-linked gene is the TDF gene that codes for testis detprnining factor. This locus plays an important role in primary sex determination.

Another phenotype known to be associated with the Y chromosome is the condition hypertrichosis. The gene concerned with this condition leads to the developnlent of hairy pinna. This phenotype has been observed ill the inhabitants of Australia, Ceylon, Israel, and India.


Related Discussions:- Y-linked traits in humans

Thumb rule for dietary management, Q. Thumb rule for dietary management? ...

Q. Thumb rule for dietary management? The thumb rule for dietary management is to advice the patient to try to cut down or avoid:  Red meats. Organ meats such as br

Internal budget - nutrient budgets, Internal budget - Nutrient Budgets ...

Internal budget - Nutrient Budgets This is concerned with the circulation of nutrients through various biotic and abiotic compartments of a given ecosystem. In other words the

Etiology, M protein of rheumatogenic GAS has distinct structural characteri...

M protein of rheumatogenic GAS has distinct structural characteristics that are akin to human heart tissue, particularly sarcolemmal membrane proteins and cardiac myosin. The major

Define factors affecting energy expenditure and requirement, Define Factors...

Define Factors Affecting Energy Expenditure and Requirement? As mentioned earlier, the energy needs vary widely among individuals in a group. Why? A number of factors cause the

Levels of prevention and role of a nurse, LEVELS OF PREVENTION AND ROLE OF ...

LEVELS OF PREVENTION AND ROLE OF A NURSE: Caplan describes the levels of  prevention as follows:  1)   Primary Prevention  It is concerned with  reduction of  incidence

Osmotic strength of the fluids, Osmotic Strength of the Fluids in Immediate...

Osmotic Strength of the Fluids in Immediate Surrounding The availability of soluble mineral salts varies widely from habitat to habitat. In fact, a big chunk of land in our

Medtronic hancock-biological valves, Medtronic Hancock (Standard Model) :  ...

Medtronic Hancock (Standard Model) :  These are gluteraldehyde preserved xenograft aortic valve, which are mounted. The modified orifice version (M-0) is one where the right

Homoeostasis, what stimulate the system in homoeostasis

what stimulate the system in homoeostasis

Explain the types of basic forces, Q. Explain the types of basic forces? ...

Q. Explain the types of basic forces? Compression: This refers to the squeezing of the test material so that it still remains as a single undivided unit but may occupy less v

What is sick sinus syndrome, Q. What is Sick Sinus Syndrome? Ans. ...

Q. What is Sick Sinus Syndrome? Ans. When a slow resting pulse fails to accelerate normally with exercise, it has been labeled chronotropic incompetence, however, there i

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