x linked traits in humans, Biology

Assignment Help:

 X-Linked Traits in Humans

Let us first examine traits determined by genes on the X-chromosome, or the X-linked traits. The human X chromosome contains many genes that are required in both the sexes, whereas the Y chromosome contaias only a few genes, principally the genes for maleness. More than two hundred traits have been found to be X-linked and only a few are known to be Y-linked. The traits controlled by genes located on the X-chromosome are also referred to as sex-linked. That is, the terms X-linked and sex-linked are used synonymously. It is more appropriate, however, to refer to these as X-linked traits, since they follow the pattern of transmission of the X-chromosome. The X-linked traits have a unique mode of inheritance because females have two doses of X-linked genes, while males have only one. Males are thus hemizygous for X-linked traits.


Related Discussions:- x linked traits in humans

What are the antigens and antibodies of abo blood system, What are the anti...

What are the antigens and antibodies of each blood type of the ABO blood system? Type A: antigen A, antibody anti-B. Type B: antigen B, antibody anti-A. Type AB: antigens A and

Define distribution of food products – public nutrition, Define Distributio...

Define Distribution of Food Products - Public Nutrition? We learnt earlier that we have buffer stocks of food grains in our country. These stocks do help to combat acute transi

Homologous proteins - amino acid sequence in fasta format, Please answer th...

Please answer the following question on Sequence Y: Protein databases 1. What sequence from which organism is this sequence most similar to? 2. Can you find any homo

Exercise- heat production, Exercise- Heat Production During physical ...

Exercise- Heat Production During physical activity heat production by exercise can to some extent substitute for heat generated by shivering. However, exercise also tends to

Anaerobic energy, how is the anaerobic energy system not entirely anaerobic...

how is the anaerobic energy system not entirely anaerobic?

What are the three main types of nitrogen wastes, What are the three main t...

What are the three main types of nitrogen wastes excreted by living beings? The major nitrogen wastes excreted by living beings are ammonia, uric acid and urea. Living beings t

Neurochemistry of consciousness, Conscious experience is probably the most ...

Conscious experience is probably the most familiar mental process that we know, yet its workings remain mysterious. Consciousness is not directly accessible for study. Hence the ne

What is xaxim, What is xaxim? Most pteridophytes have subterraneous ste...

What is xaxim? Most pteridophytes have subterraneous stems parallel to the substrate known as rhizomes. Xaxim is a type of pteridophyte with an aerial stem generally perpendicu

Properties of transparency factors in corneal hydration, What are special p...

What are special properties of transparency factors in corneal hydration of cornea? The factors affecting the transparency include special properties of the corneal epitheliu

Long distance transport, Long Distance Transport Once in the xylem ves...

Long Distance Transport Once in the xylem vessels, the transport of the mineral elements from the root to the shoot is driven by the gradient of hydrostatic pressure (root pre

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