If the Tr are the genes, then one will be TT, and one will be rr, two will be Tr.
Most individuals have two normal copies of the beta globin gene
its called cloning!
Mendel's law of segregation states that organisms inherit two copies of each gene and that organism donate copies to offspring in predictable ratios.
yes. all of your cell have the same gene.
true
Humans typically have two copies of each gene, one inherited from each parent. This pairing of genes allows for genetic diversity and a variety of possible gene combinations. Some genes may have multiple copies or variations, but in general, humans have two copies of most genes.
Most individuals have two normal copies of the beta globin gene
its called cloning!
The individual with two of the same allele is "homozygous" for a trait.
Mendel's law of segregation states that organisms inherit two copies of each gene and that organism donate copies to offspring in predictable ratios.
yes. all of your cell have the same gene.
The base color is black/red factors, controlled by the Extension gene. A horse with one or two copies of the Extension gene (Ee or EE) will have black factors. A horse with no copies of the Extension gene (ee) will be chestnut.The Agouti gene acts on the Extension gene by limiting where the black factors are displayed, into points such as the legs, mane, tail, muzzle, and ears. A horse with at least one copy of the Extension gene that doesn't not have a copy of the Agouti gene will be black, provided that no other gene modify the color. One or two copies of the Agouti gene in combination with the Extension gene will result in a bay horse. A chestnut horse (no copies of the Extension gene) can have copies of the Agouti gene, but it will not affect the horse's color, as the horse has no black factors for the Agouti gene to limit.
true
2
It takes 8 copies of a recessive gene to overpeower dominant gene
This most commonly occurs if the disorder is recessive, meaning you must carry two copies of the gene which causes the disorder in order to show it.Everyone has two copies of each gene, one paternal and one maternal. If you only carry one copy (allele) of the gene which causes the recessive disorder and your other copy of that gene is normal, you will not have the disorder. However, you can carry it on if you have a child with someone else who also carries the gene which causes the disorder and the child gets two copies of the disorder gene.
The phenotype associated with a recessive gene is only expressed when two copies of the gene are present. For example, if a person has both a recessive allele and a dominant allele for CF, the person does not have CF. The person only has CF if he/she has two copies of the recessive allele.