X-linked dominant genes, Biology

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

Posted Date: 12/11/2012 4:41:52 AM | Location : United States







Related Discussions:- X-linked dominant genes, Assignment Help, Ask Question on X-linked dominant genes, Get Answer, Expert's Help, X-linked dominant genes Discussions

Write discussion on X-linked dominant genes
Your posts are moderated
Related Questions
Nucellus - Ovule Enclosed within the integuments lies a homogenous mass of tissue which is termed as the nucellus. This is the tissue in which the female gametophyte differen

Properties of Isozymes Isozymes differ from  each other not only in  the amino acid composition, they also have different electrophoretic property, thermolability, immunologi

Energy demand for Active or moderately active lifestyles? These people have occupations that are not strenuous in terms of energy demands, but involve more energy expenditure t

Endodontic success - According to Strindberg 1956 the endodontic success is the postoperative clinical as well as radiographic satisfaction after a predetermined postoperative

Q. Illustrate Stents? Stents are metallic scaffolds that are deployed within a diseased segment of a coronary artery to establish and then maintain a widely patent lumen. Stent

Stress - Responses of Plants to Stress Let us recall what happens within the natural communities occupying the same habitat. The relative location of two plants may place them

Carbohydrate Digestion Simple sugars like glucose and fructose can be absorbed and metabolised directly but disaccharides such as sucrose or lactose and polysaccharides such a

Define Factors Influencing RS Content of Foods? Different fractions of RS mentioned in Table may be naturally present in some foods or may be generated as a result of industria

Unlike bilaterally symmetrical animals, radially symmetrical animals are almost never able to move themselves from place to place. Why might it have been so difficult for radially

Q. How does the pancreatic juice resume the digestion of carbohydrates? What is the involved enzyme? Carbohydrate digestion begins with the action of the salivary amylase (ptya