An example of a gene would be the X and Y chromosomes carried by the father. If the father can pass either gene to his offspring to get either a girl or a boy.
The blue eyed gene and the brown eyed gene in humans.
SCID
An allele is a gene. It is one form of a gene. For example, height in pea plants is controlled by one gene with two forms. A pea plant can be tall or short. There is a short allele and a tall allele for the gene governing height.
A dominant gene refers to a gene that is expressed over another gene in the same position on a chromosome. It will always show its trait in the individual's phenotype if it is present in their genotype. For example, if a person inherits a dominant gene for brown eyes, they will have brown eyes regardless of whether they also have a recessive gene for blue eyes. On the other hand, a recessive gene refers to a gene that is not expressed when there is a dominant gene present. It is only expressed in the phenotype when there are two copies of the recessive gene in the genotype. An example is the gene for blue eyes, which will only be expressed when an individual has two copies of the recessive gene and no dominant gene for brown eyes.
It's the gene that would be heterozygous not the chromosome.
a man
a example of a gene
In humans, the gene that codes for the enzyme phenylalanine hydroxylase is an expmple of a recessive gene
a man
No, its a good example of genetic engeneering though. To be more specific, it is an example of recombinant DNA technology.
The blue eyed gene and the brown eyed gene in humans.
a heterozygous gene is a gene with a genotype with two different letters. For example, Hh rather then hh, HH (which are homozygous). Hope this helps. =)
If a person is lacking a gene that causes a disorder, for example Diabetes, and a gene can be inserted into cells that require the gene, this would be gene therapy. Parkinson's disease and X-linked SCID are two that are be researched.
SCID
If a person is lacking a gene that causes a disorder, for example diabetes, and a gene can be inserted into cells that require the gene, this would be gene therapy. Parkinson's disease and X-linked SCID are two that are be researched.
a gene being expressed means it is shown, for example if you have the gene for brown eyes and the gene for blue eyes, only one can be expressed. if you have brown eyes that gene is expressed, if not the blue-eye gene is expressed.
The alleles are the different forms of the gene. This is simplified, but an example might be, if the gene is "eye color," the alleles would be "green, blue, brown, etc." The variations in the gene are the alleles.