To determine the genotype of an individual that shows the dominant phenotype you would cross that individual with one that is homozygous recessive. A monohybrid cross of two individuals that are heterozygous for a trait exhibiting complete dominance would probably result in a phenotype ratio is 3 dominant 1 recessive.
It's impossible to say without more information. The genotype AA is called homozygous dominant for the trait that is encoded by the letter A (or a). Whatever trait A stands for on your homework, the answer is the dominant one is expressed in the phenotype.
testcross
No, a child cannot be afflicted with a dominant trait if both parents have a normal phenotype. This is because dominant traits require at least one copy of the dominant allele to be expressed, and if both parents have a normal phenotype, they would not carry the dominant allele to pass onto their child.
The alleles that will be expressed in your phenotype are the ones that are dominant and determine your physical traits. These dominant alleles will be visible in your appearance, while recessive alleles may be present in your genetic makeup but not visibly expressed.
Homozygous recessive.
Yes, this is false. It's genotype that determines phenotype. e.g. If you have the dominant gene for brown eyes and the recessive gene for blue eyes (genotype) you will have brown eyes (phenotype)
Yes, both Aa and AA genotypes represent the dominant phenotype for a specific trait. The presence of at least one dominant allele (A) will result in the dominant phenotype being expressed.
Homozygous dominant and heterozygous both are a dominant phenotype.
NO, because a dominant phenotype could either be homozygous or a heterozygous.so unless you are sure about the genotype of parents we can't determine it...but we can determine the genotype of a person showing reccessive phenotype, as a recessive trait always expresses itself in a homozygous condition..Read more: Is_it_possible_to_determine_the_genotype_of_a_person_showing_a_dominant_phenotype
The recessive trait phenotype disappears in a one-trait test cross in the F1 generation. This phenotype can reappear in the F2 generation.
you mean phenotype, and its dominant alleles