NEED HELP In biology topics >_<?

Question

To be specific i would like to get as much as information as possible in this subject which is a bout sex-linked diseases
Please list any of the diseases you know that occur mainly due to genetics...please help my folks...thanks for every tiny help

Have a nice day.........^ w ^

Answer 1

Sex-liked genes are genes that reside on the X or Y chromosomes. Since they are usually on the X chromosome, females usually receive two copies of the gene (one on each X chromosome) and males receive only one because it is the X chromosome that delivers the gene. Thus, whatever allele is on the X chromosome of a male, regardless of whether it is dominant or recessive, is the allele whose trait is expressed. Hemophilia, red-greed color blindness, and Duchenne's muscular dystrophy are all sex-linked diseases. Hemophilia is caused by a recessive gene and for this reason a male needs to inherit only one copy of the defective allele to be a hemophiliac while a female hemophiliac must inherit two copies of the defective allele. Hemophiliacs cannot properly form blood clots because they lack a clotting factor required to form normal blood clots. Red-green color blindness is also caused by a sex-linked recessive gene and results in a person not being able to distinguish between the colors red and green. Duchenne's muscular dystrophy, however, is caused by a sex-linked dominant gene a person with this defect is missing an essential muscle protein and as a result, their muscles deteriorate.

Answer 2

Here are a few sex linked genetic disorders - hemophilia, color blindness, and different types of muscular dystrophy (e.g. Duschenes muscular dystrophy).

Good luck in your research!

Answer 3

Try
http://www.genetics-info.com/s/genetic_diseases
http://www.kumc.edu/gec/support/
http://www.wrongdiagnosis.com/genetics/chromosome.htm