What does it actually mean by the dominant gene?

Question

If a child takes after let's say more like the mother than the father (brown eyes,and all the characteristics of the mother) so the mother had the dominant gene,is the father's genetics for want of a better expression " weaker"as in, would be more likely to die off/be petered off through time for being weaker then that of the mother's in a Darwinian sense?

Answer 1

No, dominant and recessive genes have nothing to do with being "weaker" in a Darwinian sense. It's just whether or not they are expressed in any individual.

In fact you could say that recessive genes can be stronger - for instance the gene for blue eyes can lay hidden for generations in both sides of a family, then be expressed in a child because both parents have passed on the hidden gene to the child.

Answer 2

The dominant gene is the one that is expressed in most individuals of a population. This is based on mendelian genetics (involving one gene with two alleles, like the typical pea genetics), where the heterozygous presents the dominant phenotype. However, mendelian genetics occurs VERY rarely in nature. In humans, most of their genetics is polygenic, that is to say, there are more than 2 genes for every characteristic; skin colour has 3 genes (2 alleles for each), eye colour has 14. In this cases, the heterocygous doesn't present the purely dominant phenotype, but an intermediate phenotype between the homocigous dominant and homocigous recessive. In short, the father's genes weren't weak, they were just not expressed because they were mostly recessive, although they contributed to the child's phenotype.

Answer 3

lots of the time they seem biracial. whether, the Black genes are dominant, which potential maximum of them have curly hair, extra pigment of their dermis than an common White person. And maximum frequently have Brown eyes like maximum Black human beings. whether, some can pop out looking extra White. and that's via learn of dominant and recessive genes that they show in biology classification. you need to seem this as much as get a much better awareness. edit: that does no longer answer how White genes are dominant. How do you paintings?

Answer 4

The father's gene would not die off, because the child will be a carrier of the recessive gene. This means that the child has a chance of giving birth to a child that has the father's gene. (ie recessive, recessive)

Answer 5

A gene cannot just disappear, it is carried. Because of the ratio, there is always the chance that everyone is a carrier and that small ratio that they are lucky that they don't carry it at all, but that percentage is very very small. But the carrier of the weaker gene got it from one else who got it from someone else etc so all weaker genes are being carried from a long line of people before them.

Answer 6

Dominant gene is a trait which will manifest in the person,and acquired either from the father or mother.

Answer 7

not really. sometimes it switches back and forth. for instance, with the first child the mothers gene will be dominant...but with the second the fathers gene will be dominant. also in some cases the fathers gene wont be dominant in his children but will come through in grandchildren.

Answer 8

The dominant gene is the gene that is shown for example if the dominant gene T is for tall and the recessive t is for short, then Tt and TT will be tall. and tt will be short.
not completely, but in most of the places, but in a darwinaian sense, the gene that is more suited to the habitat will be evident

Answer 9

a gene that takes over another one, or has stronger distinct characteristics.

Answer 10

no. its just less likely that the fathers genes will show in offspring.