Cytic Fibrosis is caused by a recessive gene which means it will requre two copies of the same recessive gene for it to be expressed. Both parents musst therefore be carriers, or have the disease themselves.
Just because it is a resessive gene doesn't mean that a child cannot get CF. For example, let's do eyes. Say a mother had green eyes, and father had brown in my families case,I ended up with green eyes which is a resessive gene.
Dominant.
98.5% of the time they have the color of the parent that has the dominate color, not the resessive unless they both have a resessive color.
To determine the presence of resessive alleles. :]
A recessive gene is a gene that is only expressed if an individual has two copies of it, one inherited from each parent. In the presence of another dominant gene, the recessive gene's trait is not expressed.
No. Neither parent can be AB blood type. Each parent must have at least one resessive gene for O blood type. Either parent could be type A or B or O.
a man
In humans, the gene that codes for the enzyme phenylalanine hydroxylase is an expmple of a recessive gene
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.
One example of genetic variation that is a variant of a gene is a single nucleotide polymorphism (SNP), which is a change in a single DNA building block within a gene.
An example of a gene is the BRCA1 gene, which is known for its role in hereditary breast and ovarian cancer. This gene provides instructions for making a protein that helps repair damaged DNA and maintain the stability of the cell's genetic material. Mutations in the BRCA1 gene can increase the risk of developing certain types of cancer.