Are there any advantages to carrying the sickle-cell trait?
831121
No.  As for being partially resistant to malaria...there are shots for that to make you 100% resistent.
622103
This trait is more common in people of English, Irish or Scotch ancestry than in those of other ethnic groups. The high frequency of hemoglobin D Trait in this population is believed to reflect the large number of Indian wives brought home to England by British troops during Britain's long occupation of India.
585730
What causes sickle cell disease? \n\nSickle cell disease, a group of blood disorders, is inherited, passed from parent to child. Children with sickle cell disease have two defective genes, one from each parent. \n\nA child born with sickle cell trait inherited one defective gene from one parent, and a normal gene from the other parent. These children don't have sickle cell disease but are carriers of the defective gene and may pass it on to their children.\n\nHow is it treated? \n\nThe best possible treatment for a person with sickle cell disease is a partnership between the affected family and a team of health professionals. Successful treatment requires: \n\nEarly diagnosis using infant screening (shortly after birth). \nPreventive antibiotic treatment and immunizations starting at 3 to 4 months of age. \nAn aggressive pain treatment plan. \nConsultation with doctors skilled in the care of patients with sickle cell disease. In severe cases, doctors may recommend regular blood transfusions, drug treatment with hydroxyurea, or (rarely) bone marrow transplant.
977347
I don't believe there are any disadvantages.  The advantages would be relieving stress or blue balls, helping to be able to concentrate, etc.
637142
no doesnt matter as far as blood groups go. AB, B, O whatever theyre all just as good. \n\nhowever, genetic testing to see if people carry a rececive gene that could result in diseases like cystic fibrosis or tay-sachs might be a good idea.... but you could always adopt or hope your kids dont get those diseases, so i wouldnt look to far into it. plus you might scare off your girl if you make her get all kinds of blood tests before you get married
953682
Advantages\nYou can catch a culprit\nYou can release a wrongly blamed person\nYou can find cures for diseases\nYou can judge the nature of culprits and prevent further wrongdoings\n\nDisadvantages\nYou can keep a record of private activites of an individual\nGender bias, racism etc
344293
yes which genes you inherit can go either way. White people can carry recessive black genes and vice versa
1181339
Also known as IT has many advantages. Most mentioned by the two previous answers. Good Luck on your recitation.
220937
Forgive me for pointing this out, but survival is possible.\n\nOhter things can be used to maintain circulating volume: crystalloids (like saline) and albumin are the main ones.  Certainly, if you don't get transfused when you need it, you will have some real trouble with anemia, and with oxygen transport--but certain religioius groups, notably the Jehovah's Witnesses, refuse blood transfusions, no matter what.  They often endure more prolonged recovery because of that choice, and certainly many of them die when they would probably have survived with the transfusion, but the transfusion refusal is not a guarantee of death, even in extremely grim situations.\n\nIn longer term situations, the recovery can be accelerated by using erythropoetin or an erythropoetin analog to accelerate production of red cells; this is slower than transfusion, but it has rescued a lot of people who refused transfusions.
770411
They maybe checking for the following: \nSickle cell anemia, Iron dificency, Bata thalassemia trait, aplastic anemia.   Add....'HaemoglobinA1C'  to the list of test and see what you find.\n\nGOOD  LUCK.
228441
There is not a recessive (or for that matter dominant) gene for diabetes. \n\nType 1 is inherited, but only as a vulnerability for some HLA types. These are the 'self' proteins which distinguish you from all others (save your identical twin). An infection seems to be the most common way to get the immune system confused enough to also attack the beta cells. There may be an advantage in having one of the 'diabetes tendency' HLA setups, but I'm aware of none. It may be, as some speculate about Black Death surviors and their descendants, that they are less susceptible to some diseases. This is quite hard to study and tese out any benefit. If present, it's hardly as easily distinguished as was the sicle cell trait. \n\nAs for Type 2, there is even more ineritabiliyt, and not one gene (recessive or not). Type 2 clearly can develop from any of several issues, all connected with insulin resistance of one degree or another. Again, there may be an advantage to having genes leading to Type 2 (usually with an environmental push -- obesity, age, stress, some medications,  ...), but it is speculative and there is little evidence of it. Again studies to find such an advantage will be long, awkward adn expensive. Possibly worth doing, but businesse must limit large expenditures to something they can have some reason will produce revenue. Long term studies o fthis sort are hard to justify on that basis.
684745
beats me I got sickle cell trait wich makes my blood cels look like if someone got a nail, hammered it in the middle of the cell and yanked the cell out. But I'm guessing yours has to do with the anemia part and you got a low white blood cell count plus they are half moon shaped.
82097
The answer is an ice sickle.
9126
Sickle cell anemia pre-dominately occurs in African-Americans; yet, also occurs in people of Mediterranean and Middle Eastern descent.  I was reading on a website that said 1 in 12 African -Americans carry the recessive gene that causes the sickle cell disorder.  Thankfully, stem cell researchers have and are currently developing more treatments & cures for the disorder.
724539
Sickle-cell disease is a general term for a group of genetic disorders caused by sickle hemoglobin (HbS). In many forms of the disease, the red blood cells change shape upon deoxygenation because of polymerization of the abnormal sickle hemoglobin.\n\nHbN and HbS are alleles which are alternative forms of gene. All humans have 2 alleles for every gene (one from each parent).\nNormal healthy people have HbN HbN (HbN=normal hemoglobin).\nCarriers have HbN HbS (HbS=sickle hemogloblin).\nPeople suffering from sickle cell anaemia have HbS HbS. \n\nIn people heterozygous for HbS (carriers), the polymerization problems are minor, hence they don't suffer the effects of sickle cell anaemia. In people homozygous for HbS, the presence of long chain polymers of HbS distort the shape of the red blood cell, from a smooth donut-like shape to ragged and full of spikes, making it fragile and susceptible to breaking within capillaries. Carriers only have symptoms if they are deprived of oxygen (for example, while climbing a mountain) or while severely dehydrated.\n\nThe sufferers of the illness have a reduced life span. It is believed that carriers (sickle cell trait) are relatively resistant to malaria. Since the gene is incompletely recessive, carriers have a few sickle red blood cells at all times, not enough to cause symptoms, but enough to give resistance to malaria. Because of this, heterozygotes (HbS HbN) have a higher fitness than either of the homozygotes (HbN HbN & HbS HbS). This is known as heterozygote advantage. Those with HbN HbN are susceptible to malaria while those with HbS HbS will suffer from sickle cell anaemia.  \n\nThe malaria parasite has a complex life cycle and spends part of it in red blood cells. In a carrier, the presence of the malaria parasite causes the red blood cell to rupture, making the plasmodium unable to reproduce. Further, the polymerization of Hb affects the ability of the parasite to digest Hb in the first place. Therefore, in areas where malaria is a problem, people's chances of survival actually increase if they carry sickle cell anaemia.\n\nDue to the above phenomenon, the illness is still prevalent, especially among people with recent ancestry in malaria-stricken areas, such as Africa, the Mediterranean, India and the Middle East. In fact, sickle-cell anemia is the most common genetic disorder among African Americans; about 1 in every 12 is a carrier.
249257
Advantages-  Blood transfusions would come from your clone\n             and not strangers.\n\n             Chance for you to weigh out your options.\n             Ever wonder what would have happened if you \n             would have taken a different path.  Your clone\n             could do it for you.\n\n             Organ transplant on hand.\n\nDisadvantages-  Its like playing God.  Just shouldn't be \n                done.\n\n                Clone could turn out to be an evil twin and\n                try to steal your life.  They are not \n                robots, ya know.\n\n                One of me is enough!
728292
In biology, a trait or character is a feature of an organism. The term phenotype is sometimes used as a synonym for trait in common use, but strictly speaking, does not indicate the trait, but the state of that trait (e.g., the trait eye colour has the phenotypes blue, brown and hazel).\n\nTrait: In genetics, a trait refers to any genetically determined characteristic. In technical terms, a genetic trait is amenable to segregation analysis rather than quantitative analysis.\n\nA dominant lethal trait is a trait that is expressed if present in the genome and therefore precludes having descendants. All such cases must necessarily be sporadic and must represent new mutations, not inherited ones (because a potential parent with the trait would die before being able to pass it along).\n\nA mendelian trait is one that segregates in accordance with the laws of genetics set forth by Gregor Mendel. Sickle cell trait is a mendelian trait. It refers to the situation in which a person has one copy (and one copy only) of the gene for sickle cell but does not have sickle cell disease (which requires two copies of the sickle cell gene). If two people with sickle cell trait have children together, each of their children has a one in four chance (25%) of having sickle cell disease.\n\nA nonpenetrant trait is a genetic trait that is in the genome but does not manifest itself in the individual. By contrast, a penetrant trait is one that manifests itself. If, for example, if 100 people have a particular genetic trait but only 80 of them express it, the penetrance of that trait is 80%.\n\nhttp://www.medterms.com/script/main/art.asp?articlekey=11705\nhttp://en.wikipedia.org/wiki/Trait_(biological)