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

Sexual reproduction in animals, Sexual Reproduction All metazoans, if...

Sexual Reproduction All metazoans, if or if not capable of propagating asexually, produce special cells termed as gametes. The gametes may be either male gametes or sperms or

Explain vitamin k as an essential fat soluble micronutrient, Explain Vitami...

Explain Vitamin K as an essential fat soluble micronutrient? Vitamin K is an essential fat-soluble micronutrient the only unequivocal role in health is in the maintenance of no

Production efficiency - ecosystem, Production Efficiency - Ecosystem T...

Production Efficiency - Ecosystem The maximum amount of solar energy harvested by plants is about 5 per cent but the average for green plants, on the whole is only a small fra

Density of water in relation to temperature, Density of Water in Relation t...

Density of Water in Relation to Temperature On cooling, water molecules come closer which makes water dense. It is most dense at 4°C (Figure shown below) but it is still a liqu

Describe tr murmur and vsd murmur in details- heart diease, Describe TR Mur...

Describe TR Murmur and VSD murmur in details? TR Murmur :   Characteristic: Holosystolic murmur, loudest at left lower-sternal border and becomes louder with inspiration (Carv

What is polysaccharides, Polysaccharides are vast chains of sugar units joi...

Polysaccharides are vast chains of sugar units joined together.  The chains should be branched or linear depending on the polysaccharide.  In  animals,  excess glucose is stored as

Slight or no metamorphosis, Slight or no Metamorphosis In primitive w...

Slight or no Metamorphosis In primitive wingless insects (Apterygota) such as spring tails, silver fish etc. and in secondarily apterous insects the young ones which hatch fr

Explain risk management, Explain Risk Management Risk Management :  ...

Explain Risk Management Risk Management :  The  process  of weighing  policy  alternatives  to accept, minimize or reduce assessed risks and  to select and  implement approp

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