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

Algae, The difference b/n algae,bryophyte&pteridophyte?

The difference b/n algae,bryophyte&pteridophyte?

What is the formula of the net primary production, What is the formula of t...

What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids? Net primary production is the gross main productivity less the organic mate

Define about the excretion of calcium, Define about the Excretion of Calciu...

Define about the Excretion of Calcium? Calcium is excreted approximately in equal amounts in urine and through intestinal secretions. Bile and other secretions into the intest

Pbpk modeling for improvement drug discovery , There are many characteristi...

There are many characteristics of the ideal drug candi-date. One of these is that its pharmacokinetics should meet its intended use. Many potentially useful drug can-didates, howev

How to compare and contrast acids, Compare and contrast acids and bases in ...

Compare and contrast acids and bases in terms of their H+ ion and OH- ion concentrations.

State about charles elton, What evidence did Charles Elton collect that sug...

What evidence did Charles Elton collect that suggested that fluctuations in hare and lynx populations were related? What other evidence shows that these fluctuations ma

Treatment of angina pectoris, Q. Treatment of angina pectoris? Proper a...

Q. Treatment of angina pectoris? Proper and careful treatment of the underlying cause (usually dyslipidemia, advanced atherosclerosis or sever chronic hypertension) is imperati

Potential and excitation threshold for neurons, Q. How different are the co...

Q. How different are the concepts of action potential, resting potential and excitation threshold concerning neurons? Action potential is the maximum positive voltage level ach

Skeletal system - cranium, CRANIU M - Large, hollow, rounded part o...

CRANIU M - Large, hollow, rounded part of the skull. It's cavity is cranial cavity in it brain is protected. Such animals in which cranium present grouped in craniata.

Digestive system - pancreas, P ANCREAS It is an elongated, leaf lik...

P ANCREAS It is an elongated, leaf like, yellowish or orangish in colour. Lying partly behind stomach. 16 cm long, 2.5 cm. wide & weight about 60 gms. It consists of hea

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