Doctor insights on:
Is Discipline A Gene That Can Be Inherited
From a medical standpoint, "genetic" refers to the potential heritability of various medical conditions. While some conditions are inevitable (at some point in one's life) as a consequence of simple genetic heritability (eg huntington's disease), a large number of medical conditions (including all behaviorial health disorders) are the expressed final pathway of a ...Read more
Varies : Kyphosis simply refers to a measurement often used to describe the alignment.Of the spine seen from the side. There is a normal range of kyphosis, seen in the thoracic spine. There are a number of conditions that cause an increased kyphosis, some do have a genetic component to them. Osteoporosis is just one example of this. Thank you, . ...Read more
Neither: Best evidence is that sexuality of most gay males is determined while they are still in the uterus. The likelihood of a woman's son being gay increases with each subsequent male child but only right handed males. The first son and all left handed males have a 2% chance of being gay. The third son if right handed is actually more likely to be gay than straight. https://www.youtube.com/watch?v=z6zPh97qYd4 ...Read more
Sure: Here is a link to the international society of psychiatric genetics: http://www.Ispg.Net/. Also, the field of developmental neuropsychiatry covers much of what is known relative to psychiatric disorders with developmental origins. One of my mentors at the johns hopkins kennedy krieger institute, dr. James c. Harris wrote an excellent book on the subject. ...Read more
Can you tell me if my aunt has cancer, then is there a low/medium/high chance that my dad, and then i, may also have inherited the genes?
If there any reason I have to understand why we have only daughters and no son? Less male (y) sperm maybe or is it inherited in the genes?
Daughters : Each time the sperm fertilizes the egg there's an equal chance of a y chromosome (which would create a male fetus) and x-chromosome ( which would create a female fetus) fertilizing the egg. Statistically there is some variation between 0.85 and 1.15 of male to female birth rates. Basically it's like flipping a quarter 10 times the first four times you might get heads but over all you end up with a 50-50 ratio. ...Read more
Can you tell me what you suggest if my aunt has cancer, then is there a low/medium/high chance that my dad, and then i, may also have inherited the genes?
Depends: ...On the kind of cancer, the age at which she got it, the number of people in the family, and lots of other factors. Most cancers are not caused by an inherited gene defect. If you are very concerned, talk to your doc and if he/she thinks is proper, you may need to see a genetics specialist. If your aunt is the only one with cancer and had it late in life, odds are that is not an inherited trait. ...Read more
Gene for Factor VIII: Hemophilia a is a hereditary bleeding disorder where there is a deficiency in clotting factor viii (factor viii is needed for blood clotting). It is inherited on the x-chromosome (sex-linked). Men only have 1 "x", so if their "x" is mutated, they will have the disease. Women have 2 "x's", so they can have 1 mutated "x" and 1 normal "x", and be a carrier of the disease, with mild or no symptoms. ...Read more
Is choriocarcinoma testicular cancer hereditary? I know it could be from defective genes but i didn't think these genes were inherited! help please!
Somatic mutations: This would be a great time for you to brush up on basic tumor biology. All tumors (benign and malignant / cancer) result from mutations that take place after we're already multicellular organisms. At most, one of these is inherited ("cancer family" genes). I'm glad you have an inquiring mind. Best wishes. ...Read moreSee 1 more doctor answer
Can you tell me in the case of thalassemia intermedia, is the gene inherited from *both* parents, or only one?
Thalassemia: Thalassemia intermedia is a description, and not a pathological or genetic diagnosis. Although frequently the genes come from both parents, that is not a requirement. Generally, patients with thalassemia intermedia have significant anemia, but are able to survive without blood transfusions. ...Read more
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