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

What carbohydrate characteristic chemical features include, Carbohydrate ch...

Carbohydrate characteristic chemical features include: Select one: a. the potential to form multiple hydrogen bonds. b. the existence of one or more asymmetric centers.

Explain about low blood sugar, Q. Explain about Low blood sugar? Low bl...

Q. Explain about Low blood sugar? Low blood sugar can also be caused by accidentally taking too much of insulin. When this occurs, more insulin is present in the body than nee

Why is ridge mapping required, Why is ridge mapping required and what is it...

Why is ridge mapping required and what is its alternative The selection of the implant diameter apart from the mesiodistal space available also depends on the buccolingual widt

Calculate the efficiency of photosynthesis, Figure  shows the flow of energ...

Figure  shows the flow of energy through the trees in a forest ecosystem.The numbers represent inputs and outputs of energy in kilojoules per m 2   per year. (a)  (i) On Figure,

Ecological pyramids, What are the advantages of ecological pyramids?

What are the advantages of ecological pyramids?

Explain the drug effects on absorption of nutrients, Explain the Drug Effec...

Explain the Drug Effects on Absorption of Nutrients? Many drugs can impair, prevent or reduce absorption of nutrients due to: Formation of insoluble complexes: many drugs

Explain the formation of the enzyme-substrate complex, What are the main th...

What are the main theoretical models that try to explain the formation of the enzyme-substrate complex? There are two major models that explain the formation of the enzyme-subs

Could you survive on a diet which contained no carbohydrate, Could you surv...

Could you survive on a diet which contained no carbohydrate?   It should be possible to survive without carbohydrate as energy can be obtained from fats and proteins.

Approach grafting, Approach grafting In this method both scion and s...

Approach grafting In this method both scion and stock remain rooted. A small slice is cut off from the stem of scion and stock. Scion is bent towards the stock. The two c

Artificial parthenogenesis, Artificial Parthenogenesis In various cas...

Artificial Parthenogenesis In various cases, the eggs that normally develop only after fertilisation can be experimentally induced to develop parthenogenetically by specific

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