Down syndrome results from a nondisjunction during cell division. That is, homologous chromosomes 21 fail to separate in meiosis I, or sister chromatids 21 during meiosis II or mitosis.
Down syndrome is caused by trisomy of chromosome 21 (an extra chromosome to the usual two), which is an autosomal chromosome. Therefore it is not a sex linked disorder.
Yes, Thalassemia sex is a linked trait.
Ha ;)
No. Down syndrome is a meiotic malfunction that causes more than two copies of chromosome 21 in the offspring formed from the affected gamete. It has nothing to do with gender.
Downs Syndrome is not a sex-linked trait.
Sexlinked and recessive.
Color blindness is a recessive sex linked trait.
Sickle cell disease is an autosomal reccessive sexlinked trait so, a female msut have 2 recessive alleles to have the trait and a male needs only one allele (this is because there is no corresponding site for this allele on the Y chromosome. The female can be a carrier of the disorder with the defective allele on one X chromosome and a normal allele on the other X chromosome. Female carrriers can have a mixture of normal and abnormal redblood cells.
Is there a particular chromosome on which thalassemia is located
Yes they are related
If you have beta thalassemia trait and your partner has sickle cell trait there is a 25% chance of your child having sickle beta thalassemia.
Sexlinked and recessive.
Yes, Thalassemia sex is a linked trait. Ha ;)
Nope! The disease is equally in both males and females. This means that it is autosomal.
have seen one of my friends sister had kid and all normal no complications...not thalassemia either.........beta and alpha i think there is 25% normal chance
It is unlikely.
you have a 50/50 chance me and my twin both had it and my 2 older brothers are fine 1 is a carrier and the other is not.
Thalassemia Intermedia is a recessive trait inherited disease of the red blood cells. In thalassemia, the genetic defect results in reduced rate of synthesis of normal hemoglobin chains.
i was told many years ago that i couldn't donate as I'm a beta thalassemia carrier. best to ask your local donation center.
If untreated, beta thalassemia major can lead to severe lethargy, paleness, and delays in growth and development. The body attempts to compensate by producing more blood, which is made inside the bones in the marrow.
This is a type of solubility testing for sickle cell disease. It is very specific for this disease and several combinations sickle cell / thalassemia variants but inadequate for screening and fail to identify important transmissible hemoglobin gene abnormalities - particularly in the prenatal setting when looking for those that affect fetal outcome (eg, Hb C trait, β-thalassemia trait, Hb E trait, Hb B trait, Hb D trait).
Color blindness is a recessive sex linked trait.