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The gene for red hair is recessive to the gene for black hair. What will be the hair colour of a child if he inherits a gene for red colour from his mother and a gene for black hair from his father Ex?
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If a boy inherits a disease that is autosomal recessive he inherited it from his mother?
yes
Why does a sex-linked trait only require one recessive allele on the X chromosome of a male to show the phenotype?
because the male only inherits one X chromosome (from his mother), his other sex chromosome is Y (from his father)
What is the risk of a colour blind child in a family when father is colour blind and mother is normal?
if the child is a boy, 0%. if it's a girl, either 100% if the trait is dominant in the father or 50% if it is recessive. there is also the possibilty of the daughter having it but just being a carrier (has the disease but no signs of it)
A lioncub inherits what fraction of its genes from its mother?
It inherits about 50 of its mothers genes.
Who does a male child inherit his X chromosome from?
yes, some people have xxy chromosomes, a genetic mutation. Although I'm not sure if the extra chromosome is from the fathers sperm or sex cell. Hope this helps :)
If a boy inherits a disease that is autosomal recessive he inherited it from his mother?
yes
How are dominant and recessive different?
Two genes determine a trait, e.g. eye colour (i will use eye colour as my example).You get one gene from your mother, and one gene from your father. Different genes may be dominant or recessive. In eye colour, Blue is a recessive trait and brown ia a dominant trait.That means that in the case of receiving a blue gene from your mother, and brown gene from your father, you will have brown eyes as it is dominant, as you only require ONE gene to show that trait, (although you may have two). However, you have to have BOTH recessive genes to have the recessive trait, meaning you have to be heterogenous for the gene.Hope that helped :)
Why does a sex-linked trait only require one recessive allele on the X chromosome of a male to show the phenotype?
because the male only inherits one X chromosome (from his mother), his other sex chromosome is Y (from his father)
How is it possible that a child inherits equally from its mother and father?
If the egg and sperm have the same amount of chromosomes.
What is the risk of a colour blind child in a family when father is colour blind and mother is normal?
if the child is a boy, 0%. if it's a girl, either 100% if the trait is dominant in the father or 50% if it is recessive. there is also the possibilty of the daughter having it but just being a carrier (has the disease but no signs of it)
Mother has light green eyes father has hazel what color would their baby have?
This depends on their recessive and dominant genes, and therefore the chances they would have of having a child with a certain colour eyes.
Can mother have a neg and father have o positive have a child with o ne blood?
Yes. The father could be carrying a recessive gene for a negative Rh factor. Obviously, the mother carries only the recessive genes.
Where does a human's genes come from?
A person inherits two sets of chromosomes: one from the mother, one from the father.
Why does a baby have similarities to their parents?
Genetics. A baby inherits half their genetic makeup from the mother and half from the father.
Mother is o positive and father is o positive Does this mean baby will be o positive?
No. There's a small chance the baby will be O negative--if both parents have an Rh negative (recessive) allele, and the baby inherits this allele from both parents, the baby would be Rh negative. But if the baby inherits the Rh positive allele from either parent, the baby will be Rh positive.
How come your dad has blue eyes blond hair mom has hazel brown eyes and one brother has blue eyes blond hair and the other has green eyes blond hair why do you have brown hair and dark brown eyes?
I don't know how much you know about genes, but there are dominant genes and recessive genes, and you only get two genes (a person could get two dominants or two recessives or one dominant and one recessive) To explain it better, here is a scenario:The father has a dominant blue eye gene + a recessive dark brown eye gene and two blond hair genes,While the mother has a dominant blond hair gene + a recessive brown hair gene and has a dominant hazel eye gene and a recessive green eye gene.Those two people have three kids: two have blond hair, one inherits his father's blue eye gene while the other inherits his mother's recessive green eye gene (leading to the first having blue eyes and the second having green eyes), and the last inherits his/her father's recessive dark brown gene and the mother's brown hair gene.If you look at old photographs you might find some grandparents have the same dark brown eyes or brown hair as you.
2 A child is diagnosed with a rare genetic disease Neither parent has the disease How might the child have inherited the disorder?
Both parents are carriers of the recessive gene and if the child inherits that gene from both mother and father the child will have the disease even though the parents don't.
