X-linked dominant genes, Biology

Assignment Help:

X-Linked Dominant Genes

Dominant X-linked genes are always expressed in both the sexes just as in autosomal traits. One dose of X-linked dominant allele produces its effects in males as well as females. The hemizygous male transmits the gene to all its daughters but none to his sons. There is no father to son transmission. The heterozygous females transmit the trait to half their children, irrespective of lhcir sex. On the other hand, females homozygous for the dominanl allele produce all affectcd children. For example, a form of vitamin D-resistant rickets is inhcrited as an X-linked dominant
trait (Figure shown below).

1353_x-linjed.jpg


Related Discussions:- X-linked dominant genes

The best choice of a physician to determine her condition, A 37-year old wo...

A 37-year old woman is admitted to the hospital after complaining of chest pains. She admits to having had severe headaches for several days prior to seeking medical help. She is a

Explain dietary diversification - iron deficiency anaemia, Explain the Diet...

Explain the Dietary diversification - Iron Deficiency Anaemia? It aims to ensure that deficient populations have access to foods rich in iron and also foods rich in vitamin C (

Illustrate about the primary minerals, Illustrate about the primary mineral...

Illustrate about the primary minerals The minerals originally formed when once -heated magma (molten rock) cooled and formed solid igneous rocks (explained below) are called as

Biota of the neritic oceanic zone, Biota of the Neritic Oceanic Zone T...

Biota of the Neritic Oceanic Zone This zone constitutes 75 per cent of the total oceanic area and is relatively rich in species and high in productivity owing to factors such

Explain oncogenes or defective tumour suppressor genes, 1.  Explain why a g...

1.  Explain why a gain of function would be a dominant effect and a loss of function would be a recessive effect. Which types of genes are each associated with: oncogenes or defect

Explain risk factors for cad, Explain Risk Factors For CAD? As has been...

Explain Risk Factors For CAD? As has been noted, CAD is very common among the Indians and many studies have been undertaken to find out the reasons behind this predilection. Wh

Define the term behaviour change communication, Q. Define the term Behaviou...

Q. Define the term Behaviour Change Communication? Behaviour Change Communication (BCC) is an interactive process with communities to develop specific messages and methods usin

Human respiratory system - nasal chamber, NASA L CHAMBER - External...

NASA L CHAMBER - External nares are 2 in number, i.e., dirhynous. Situated at lower side of nose. Open into nasal chamber. Nasal chamber opens into pharynx by internal n

Indications for surgery-mixed tricuspid stenosi , Indications for Surgery: ...

Indications for Surgery:  In a mixed lesion, either regurgitation or stenosis may be dominant and decision of surgery depends on the haemodynarnics. At the time of surgery on othe

Clinical presentation and investigation of hypertension, Any elevation in B...

Any elevation in BP is accompanied by increased risk of cardiovascular and cerebrovascular events and renal damage. The most distinctive pathological consequence

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