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Explain the difference between intermediate inheritance and codominance?
In codominance, neither phenotype is recessive. Instead, the heterozygous individual expresses bothphenotypes. Intermediate inheritance is when neither allele is dominant to another, but a mixture is produced in the 2 alleles present. A mixed phenotype is given that is between the two parents phenotype .e.g Red flowers (RR) crossed with white flowers (WW) produces pink flowers (RW).
What occurs when the heterozygous condition exists as an intermediate between the two homozygotes?
When the heterozygous condition exists as an intermediate between the two homozygotes, it is known as incomplete dominance. In this scenario, neither allele is dominant, resulting in a blending of the two traits. This leads to a phenotype that is a mix or intermediate of the two homozygous phenotypes.
What is it called when neither copy of an allele completely masks expression of the other but instead a blending of alleles is seen?
Incomplete dominance occurs when neither allele is completely dominant over the other, leading to a blending or intermediate phenotype in heterozygous individuals. This results in a phenotype that is distinct from those of the homozygous genotypes.
How does codominance work and why does it happen?
Incomplete dominance occurs when a homozygous genotype produces an intermediate, or middle phase before the result. This intermediate is the heterozygous' phenotype.
When neither gene in a genotype pair is dominant and neither gene is recessive the genes are said to be .?
Incomplete dominant alleles.
Is type 2 diabetes homozygous or heterozygous?
Type 2 diabetes is a complex disorder influenced by multiple genetic and environmental factors, making it neither strictly homozygous nor heterozygous. Genetic predisposition to type 2 diabetes can involve a combination of different gene variations and is not typically determined by a single gene in a homozygous or heterozygous manner.
How does incomplete dominance work in genetic inheritance?
Incomplete dominance occurs when neither allele is completely dominant over the other, resulting in a blending of traits in the offspring. This means that the phenotype of the heterozygous individual is a mix of the phenotypes of the two homozygous parents.
What is when neither copy of an allele completely masks expression of the other but instead a blending of alleles is seen?
This phenomenon is known as incomplete dominance, where neither allele is dominant over the other and a blending of traits is observed in the heterozygous genotype. This results in an intermediate phenotype that is a mix of the two homozygous phenotypes.
Is todd homozygous or heterozygous for pku?
If Todd has PKU, he would be homozygous for the gene associated with PKU, meaning he has two copies of the faulty gene. This would result in the expression of the PKU disorder.
How is a snap dragon an example of incomplete dominance?
When they don't have pink as their color so the "parents" had to of been either both white or both pink. That is how you can tell when snapdragons are not following the pattern of complete dominance.
A child is born with type AB blood what blood must the parents have?
The most likely blood type for the child is A positive - but A negative, O positive and O negative are also possible depending on the genotypes of the parents. If both parents are heterozygous AO, then the child could have either A or O type blood. If either parent is homozygous, AA, then the child must have blood type A. If the parent with positive blood is heterozygous, Dd (+-), then the child could have either positive or negative type blood. If they are homozygous, DD (++), then the child must have positive type blood.
Explain the difference between intermediate inheritance and codominance?
In codominance, neither phenotype is recessive. Instead, the heterozygous individual expresses bothphenotypes. Intermediate inheritance is when neither allele is dominant to another, but a mixture is produced in the 2 alleles present. A mixed phenotype is given that is between the two parents phenotype .e.g Red flowers (RR) crossed with white flowers (WW) produces pink flowers (RW).
Do heterozygous and homozygous result in the same phenotype for blood groups?
Yes. Whether you are heterozygous or homozygous only matters in parenting, to know the possibilities of your offspring. However, the only recessive trait in the blood is type O. The other two genes, A and B, are co-dominant, meaning if you have one of each, you'll have AB blood, because neither is dominant to the other.
What characteristics demonstrate incomplete dominance?
Incomplete dominance occurs when the heterozygous genotype results in an intermediate phenotype between the two homozygous genotypes. This shows that neither allele is completely dominant over the other. Incomplete dominance is often observed in traits such as flower color, where a red and white allele can result in a pink phenotype in heterozygous individuals.
When there are two different alleles for a trait?
When there are two different alleles for a trait, it means that an individual possesses two different forms of a gene that determines that trait. One allele may be dominant over the other, resulting in the dominant trait being expressed in the phenotype. The genotype of an organism carries the information for both alleles present.
What occurs when the heterozygous condition exists as an intermediate between the two homozygotes?
When the heterozygous condition exists as an intermediate between the two homozygotes, it is known as incomplete dominance. In this scenario, neither allele is dominant, resulting in a blending of the two traits. This leads to a phenotype that is a mix or intermediate of the two homozygous phenotypes.
What is it when alleles are neither dominant or recessive?
It is called CODOMINANCE if the alleles each express when the phenotype is heterozygous. Let's look at the following situation. There are snapdragon flowers that are homozygous (having 2 of the same allele) for red. Let's call them R. There are also snapdragon flowers that are homozygous for white. Let's call them r. If you take one of the RR flowers and breed it with a rr flower, you will get Rr. If one of the alleles is dominant, then the flower will be the color of the dominant allele. If R (red) is the dominant allele, then all of the offspring will be red; if r (white) is the dominant allele, then they will be white. However, if they are codominant, then if the genotype is heterozygous (Rr), then the alleles will both express- in this case, the offspring would be pink. Hope I helped!
