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A promoter <--- Gradpoint/NovaNet A promoter is located at the beginning of a gene. A promoter functions by facilitating transcription of that gene
malaria
The gene is not expressed, even if it is a normal gene in every other way.
The different forms of a gene are called alleles.
The normal gene is responsible for a muscle protein controlling the flow of sodium during muscle contraction.
alleles are located in the chromosomes.
Placing a normal gene into a virus is a type of gene therapy. The virus is used as a vector in the hopes of inserting the normal gene into the recipient's DNA.
Gene contain hereditary information that is transferred from parents to offspring. They are located in the nucleus of a cell.
There is no one gene for schizophrenia. However, there are many different genes that may contribute to schizophrenia. A gene on chromosome 1 in the 22 family is implicated in schizophrenia, as well as genes on chromosomes 11 and 6.
a lethal gene
A promoter <--- Gradpoint/NovaNet A promoter is located at the beginning of a gene. A promoter functions by facilitating transcription of that gene
The probability is 0 (but the daughter will be a carrier of the color blind gene). This is because the gene dictating whether someone is color blind or not is linked to the X chromosome (and not the Y). The color blind gene is a recessive gene whilst the normal color vision gene is a dominant gene. Hence if a girl (XX) has one normal vision gene (from one parent) and one color blind gene (from the other parent), her normal vision gene will be dominant to the recessive color blind gene and hence she will have normal vision (but she will be a carrier of the color blind gene). If both her parents contribute the recessive color blind gene to her, then she will be color blind. For a woman (XX) to be color blind, she needs to be have both genes to be recessive (ie where there is no dominant normal color vision gene to dominate). For a man (XY), as long as the X gene contributed by his mother is a color blind gene, he will be color blind because he has no other X chromosome where a dominant normal color gene could reside. Hence, to answer the question, a man with normal color vision (XY, with a dominant normal color vision X gene since the gene can't be the recessive color blind gene otherwise he will be colorblind) and a colorblind woman (XX, both recessive color blind genes), will each contribute an X each the child. The man will contribute his only X chromosome which carries the normal color vision X gene and the woman can only contribute a recessive color blind gene. The man's normal color vision X gene will be dominant, and hence the daughter will definitely have normal vision (despite being a carrier).
Different versions of the same gene are called
Although a normal gene is introduced into a patient's surface cells in the lung, these cells are not the ones that need to produce the highest levels of the missing transport protein. The virus carrying the normal gene cannot reach the deep lung cells where the normal gene is most needed.
The gene is not expressed, even if it is a normal gene in every other way.
malaria
The different forms of a gene are called alleles.