I was on another site and someone said we get 75% of our genes from our father, 25% from our mother. Don't we get an equal amount from both or is that person right?
2006-09-10 14:44:06 · 12 answers · asked by xxlondonbridge 1 in Science & Mathematics ➔ Biology
I didn't realize this was needed but - SERIOUS ANSWERS ONLY. jeez.
2006-09-10 14:47:48 · update #1
Actually, the mitochondrial DNA is passed on by the mother only. And although mitochondries are not participating in the genetic makeup of an individual, and are not in a person's chromosomes, a case can be made that this is STILL DNA, despite the fact these are not genes.
So, mothers do contribute 50% (or more, depending on the definition of which DNA should apply) to a children.
And just to drive the point further, you know that a girl has two X chromosome, and that boys have a X and a Y. If you consider the fact that a X chromosome is much bigger than the Y, and contains more genes as a consequence, the truth of the matter is that fathers contribute 50% if the child is a girl, and a bit LESS than 50% if this is a boy.
So, this other site responder's tag name might have been "I speak baloney" for all we should care, because he is totally wrong. And your impression, that we get as many chromosomes from our father than from our mother, is right.
2006-09-10 14:59:39 · answer #1 · answered by Vincent G 7 · 2⤊ 0⤋
The chromosomes do provide 50% from the father and 50% from the mother but some individual traits in people might be dominant or recessive. The dominant cancels out the recessive gene/trait which could sometimes give more traits from either the father or the mother.
2006-09-10 21:52:19 · answer #2 · answered by foxtrot 3 · 1⤊ 0⤋
You have two sets of chromosomes... one comes from your mom and the other from your dad, both consist of 23 chromosomes. Genes are pieces of chormosomes, so they should be equal given from both parents although not all will be expressed... Simply speaking, if one parent has blue eyes and the other has brown the child has a only a 25% chance of having blue eyes because brown is more dominant, not because they got more genes from one or the other.
2006-09-10 21:55:32 · answer #3 · answered by Angie B 3 · 1⤊ 0⤋
You were steered wrong. You absolutely get 50% of your genes from each parent. How those genes are expressed is a different story. You may look identical to one parent or the other but still have the unexpressed genes of the other parent.
2006-09-10 23:04:37 · answer #4 · answered by ebay junkie 2 · 1⤊ 0⤋
No. We get an equal no of genes but only the 'stronger' ones express. Then whichever parent has the dominant gene gives you that character,
2006-09-11 06:49:57 · answer #5 · answered by Sarab s 3 · 0⤊ 0⤋
genes are carried on chromosomes. you get an equal number of chromosomes from each parent- 23 from mom and 23 from dad. so its 50/50.
2006-09-10 21:49:30 · answer #6 · answered by ashley 2 · 1⤊ 0⤋
On average, it is about 50%/ 50%. The same for siblings. The on average is important, as the distribution varies somewhat, but it not enough usually to matter to individual organisms.
2006-09-10 21:58:37 · answer #7 · answered by Anonymous · 0⤊ 0⤋
In my family, the women wear the genes.
2006-09-10 21:46:02 · answer #8 · answered by Anonymous · 1⤊ 1⤋
That is not right. We have 46 chromosomes in our body. It is half and half. 23 come from ur mom and 23 come from ur dad
2006-09-10 21:50:53 · answer #9 · answered by ~*Kt*~ 3 · 1⤊ 0⤋
False your genetic background is made up a wide variaty of blood kin along with your own, thank god right!
2006-09-10 21:50:33 · answer #10 · answered by edgarrrw 4 · 0⤊ 1⤋