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When one allele for a particular trait masks or overrides another allele for a trait, it is called dominance. The allele that is masked is called the recessive allele. The allele that is dominant will determine the phenotype.
What else can I help you with?
If two alleles have incomplete dominance what will resulting phenotype be for an individual who carries on copy of each allele?
This individual will show a mixture of these two traits
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.
What is the difference between incomplete dominance and codominance?
co dominance is when there is no dominant or reccessive traits just lie in in incomplete dominance the diffrence is in co dominance the are mkore chromosomes
Where both alleles appear in the heterozygous form is known as?
The heterozygous genotype
What is the difference between a herezygous and a homozygous?
"Heterozygous" and "homozygous" are terms that refer to alleles, which, in genetics determine what trait, from which parent, will appear in the offspring. Alleles can be either Dominant or Recessive. Every organism has two alleles, which can both be dominant, both recessive, or one of each.So,If an organism heterozygous, it has one recessive and one dominant allele.If an organism is homozygous then both of its alleles are the same; you need to specify if they are homozygous recessive (both alleles are recessive) or homozygous dominant (both alleles are dominant).
When two different alleles appear on one gene but one of those alleles appears in the phenotype?
complete dominace
When two different alleles appear on on gene but only one of those alleles appears in the phenotype is demonstrated?
complete dominance
When two different alleles appear on one gene but only one of those alleles appears in the phenotype is demonstrated.?
complete dominance
When two different alleles appear on one gene but onely one of those alleles appears in the phenotype what is demonstrated?
complete dominance
When two different types of alleles appear on one gene but only one of those alleles appears in the phenotype what is demonstrated?
Complete Dominance
When two different allels appear on one gene but only of those alleles appears in the phenotype is demonstrated?
Complete Dominance 2/25/11.....friday8:21
If two alleles have incomplete dominance what will resulting phenotype be for an individual who carries on copy of each allele?
This individual will show a mixture of these two traits
How do you deterime phenotypes?
phenotypes are decided by the alleles for that particular characteristic, by a dominant or two recessive alleles. For example, cystic fibrosis has a recessive allele so the phenotype of cystic fibrosis would only appear if there were two of the recessive allele, one from each parent, were present. A heterozygous carrier of the cystic fibrosis allele would show the phenotype of not having cystic fibrosis. So to determine the phenotype simply find out which allele is dominant and find what alleles each parent has the the probability of each phenotype can be calculated
How many different phenotypes can be produced by a pair of co-dominant alleles?
Three. Each homozygous genotype will have one phenotype each, and the heterozygote will have a third. Unlike incomplete dominance, where the heterozygote's phenotype is a blending of the two homozygous ones (i.e. crossing homozygous red and homozygous white snapdragons results in pink heterozygotes), codominance means the phenotype for each allele is seen in the heterozygote. An example can be seen in the Andalusian fowl. The two homozygotes have black and white plumage respectively, but heterozygotes appear blue, due to the presence of a fine mosaic of black and white areas (no blending).
According to the rule of dominance if two different alleles are present is the dominant allele expressed?
the dominant allele is expressed when two (assuming you mean dominant and recessive) alleles are present. however, if the alleles are codominant they are both expressed.
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.
Why are IA and IB alleles considered codominant?
The IA and IB alleles code for the A and B antigens on the membranes of erythrocytes. These two antigens can exist together, as in a person with the AB blood type. Since the two alleles can express their character simultaneously, they are considered codominant.
