Yes. For example if cancer if very common in your family, you likely have genes that are more susceptible to it. That's why people say "its hereditary." It means its caused by your genes. If this is hereditary for you, you are more likely to die from cancer.
I don't know about health but you get half your genes from mom and half from dad. For example you might have blue eyes like mom but dark hair like dad
hair color doesn't effect it. It all has to do with genes, health of your hair, and diet.
genetic drift is the change in genes due solely to chance.bottleneck effect and founder's effect are both examples of how chance effects the genes.
Some argue that genetically modified food has no effects on human or animal genes. They also argue that GMO foods are the same as any other foods and have no negative health effects at all. Others argue that they might cause changes to our genes, and that they do cause changes to the flora in our intestines, possible sterilization, and other health issues. The FDA has declared then to be "substantially equivalent" to non GMO foods. In reality, we just do not know what effects genetically modified food have on our health or our genes.
Some argue that genetically modified food has no effects on human or animal genes. They also argue that GMO foods are the same as any other foods and have no negative health effects at all. Others argue that they might cause changes to our genes, and that they do cause changes to the flora in our intestines, possible sterilization, and other health issues. The FDA has declared then to be "substantially equivalent" to non GMO foods.In reality, we just do not know what effects genetically modified food have on our health or our genes.
No effect on health No effect on health
Crossing over can effect on more then one gene i.e. at least two as in crossing over the genes of homologus chromatin get interchanged so it effect at least two genes and can effect or change more then two genes depend upon the linking and crossing over capability
Genetics
A kid
Polygenic inheritance occurs when one characteristic is controlled by two or more genes. Often the genes are large in quantity but small in effect. Examples of human polygenic inheritance are height, skin color, eye color and weight. Polygenes exist in other organisms, as well.
genetic drift is the change in genes due solely to chance.bottleneck effect and founder's effect are both examples of how chance effects the genes.
Supplementary genes are two independent pairs of genes interacting in such a manner that one dominant factor produces its effect whether the other is present or not, while the second gene can produce its effect only in the presence of the first.
Some say GMO foods have no effect on genes. Others say they do, but those people are often referred to as conspiracy theorists, unscientific, or a variety of other things. In reality, we probably don't know what effect, if any, eating GMO foods has on our genes.