Do you have the dominant gene or the recessive gene for rolling your tongue?
831782
i have 56 chromosomes...im special
280199
for some its heredity for others is how they eat
899467
So handedness isn't a simple dominant-recessive trait.  It's actually linked to lateralisation - a process during development where the two halves of the brain each become specialised for particular tasks.  So all people who are right-handed are typically lateralised in the same way, for example they have an area of cortex on their left hemisphere dedicated to language (Broca's area) with parts of the right hemisphere dedicated to processing facial expressions (these are just two examples, there are many other left-right specialisations).  But left-handers and a small minority of right handers have different speciaisations.  So Broca's area may be found on the right hemisphere in these people.  Other features of the typical left-right patten may or may not be swapped producing several different patterns of lateralisation within the human population, one dominant pattern, seen in about 90% of people and several other patterns seen in just a few percent of people.\nWhich pattern of lateralisation an individual is, (including whether they are left-handed or right-handed) is determined by their genes.  Incidentally, a very small minority of people are naturally ambidextrous and don't actually have a genetically-determined hand preference.  However, experience and development also play a role.  So a genetically left-handed person who is made to use their right hand will, by virtue of practise become better at using their right-hand.  Similarly, people can teach themselves to be "ambidextrous" by practising with their non-preferred hand, but this isn't the same as natural ambidextrousness.\nSo to (finally!) answer your question about why you aren't left-handed, lateralisation patterns (which determine handedness) are influenced by many different genes and different combinations of these genes will produce different patterns, so while left-handedness will "run in the family" it can't be predicted as easily or reliably as hair colour, or eye colour or any other single gene trait.
258194
Yes, many people do not replace the lid on the toothpaste.\nGengas Khan had the correct idea. Breed with everyone mix the gene pool. Making it hard for inbreeding to have a detrimental effect on society.
435042
Nurture vs. Nature...\n\nBoth are factors that influence a human's behaviors.\n\nHereditarily speaking, genes influence things such as temperment & patience. It has to do with brain chemistry, adrenaline & other hormones that are released in the body.\n\nEnvironmentally, your parents are your best influence. Most people who abuse others learn by watching others do it. Tolerance is also learned from family members.
961130
Being on the receiving end of someone with a strong tongue, I recommend french kissing.  This keeps your tongue flexible and the "flicking" motion strengthens your tongue.
1159249
I suffer a rare genetic mutation that renders me completely devoid of all seriousness.  it's as though my funny bone grew completely out of control and encompassed my entire skeletal structure.\n\noh, look!  a wombat! ;-Þ
1169675
Lock your tongue against your teeth and try to talk normally
438089
its like a cat purring.  Put your tongue back in your throat and posistion the tip by the gum line of your twofront teeth, and push a little air after the initial american R.  you roll both R and RR, but Roll RR a little longer, most people dont rool regular R s , but your supposted to.
300478
The previous poster was correct, however in an earlier post someone stated that addiction is not hereditary. That is incorrect. If you come from a long lineage of alchohol abusers or drug users the chances that if you were to use either you would be more likely to have the propensity towards addiction. However, please remember that we were all born with the ability to CHOOSE how we behave.
577577
The alleles you get from your mom and dad. (biological)
1072156
I think it's in your genes...but not sure.
461357
I think you inherited a mutated gene from your parents, as gingerness is an inherited mutation. Whatever you do DON'T pull the ginger hairs out with tweezers..or else your brown hair will be replaced by ginger hair..Why do you even have a beard anyway.
96812
It's really an uncomfortable situation.  My response depends on how well I know the parent.  But I'm not good at biting my tongue, so I drop hints, too.
507614
You probably have some Italian in your background.  We tend to talk with our hands.\n\nHonestly, I don't think it is social, I was raised American not Italian, but I do it too.  I think there might be something genetic involved, but yes, I wave my hands around while talking as you have described.\n\nGreeks to it too.  I think it is Mediterranean in nature.  \n\n-Dio
515090
dominant e.g. Aa, AA - Recessive -aa
590867
Cute question...probably daffy because nothing goes the way I want and someone generally has the upper hand. I try to be sneaky and make things work in my favor but it rarely happens then I get extra frustrated and just want to spit! Does that answer your ??