One example is Huntington's Disease. With a recessive genetic disorder, to develop the disorder, you must inherit the gene from BOTH parents (odds, 1 in 4). With a dominant gene disorder, if you inherit the gene from ONE parent, you will develop that disorder (odds- 1 in 2).
Codominance is a genetic phenomenon where two different alleles for a trait are expressed equally in the phenotype of an organism. An example of codominant alleles is the ABO blood group system, specifically the A and B alleles. When an individual inherits both the A and B alleles, their blood type is AB, displaying characteristics of both types without blending, which illustrates that neither allele is dominant or recessive. This results in both A and B antigens being present on the surface of red blood cells.
Which statement describes the blood type of a person with the alleles IAi? It is type AB because I and i are codominant. It is type AB because A and i are codominant. It is type A because i is dominant and A is recessive. It is type A because A is dominant and i is recessive.
To the best of my knowledge it is NOT codominant, but rather a simple autosomal recessive disorder. It may also be considered intermediate inheritance (a.k.a. incomplete dominance or overdominance) as heterozygotes are to an extent deficient in normal haemoglobin A production, only they usually do not show any clinical symptoms (and are protected from malaria as a bonus).
yes but the mans genes are shown more in the child is that your question cause i might be totaly wrong. ---- Genes from each parent show equally and codominant alleles produces a interleaved pattern rather than a blended pattern like incomplete dominance genes.
A heterozygote will show both phenotypes. For example, a tortoiseshell colored cat is heterozygous for black and orange coat color and it has both black and orange hairs in its coat. Refer to the following link for an illustration: http://www.great-pictures-of-cats.com/tortoiseshell-cats.html
Human blood type is determined by codominant alleles.
No, autosomal recessive
codominant alleles
2
Yes, codominant alleles assort independently during Mendelian inheritance. This means that the inheritance of one pair of alleles does not influence the inheritance of another pair of alleles on different chromosomes. Each allele segregates independently into gametes during meiosis.
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Which statement describes the blood type of a person with the alleles IAi? It is type AB because I and i are codominant. It is type AB because A and i are codominant. It is type A because i is dominant and A is recessive. It is type A because A is dominant and i is recessive.
:) codominant alleles
The prefix "co-" in codominant signifies a relationship where two alleles of a gene are both fully expressed, without one being dominant over the other. In genetics, codominance occurs when both alleles in a heterozygous individual contribute equally to the phenotype.
The allele for the sickle cell trait is codominant with the normal allele. This means that in individuals with both alleles present, both traits are expressed.
Dominant markers show only the dominant allele and mask the recessive allele, while codominant markers show both alleles separately. With dominant markers, heterozygotes can't be distinguished from homozygous dominant individuals, while with codominant markers, heterozygotes display a distinct phenotype from homozygous individuals. Dominant markers are easier to interpret but may not provide as much information as codominant markers.
A codominant trait is when two different alleles for a gene are both expressed in the phenotype of a heterozygous individual. This results in a distinct phenotype that shows features of both alleles. An example is the AB blood type in humans, where both the A and B alleles are expressed.