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.
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.
If one parent is homozygous dominant for all traits, they can only pass on dominant alleles, while the heterozygous parent can pass on either dominant or recessive alleles. This would result in a combination of offspring that are either homozygous dominant or heterozygous for each trait, but none would be homozygous recessive. Consequently, the overall phenotype of the smiley face would predominantly express the dominant traits.
He used the term hybrid.
If 50% of the offspring show the dominant phenotype and 50% show the recessive phenotype, it is likely that one parent is heterozygous (Aa) for the trait and the other parent is homozygous recessive (aa). This would result in a 1:1 ratio of offspring showing each phenotype.
The genotype AA represents a homozygous dominant genotype. The capital letter "A" represents the dominant allele, while the lowercase letter "a" would represent the recessive allele. If both dominant alleles are present in a genotype (homozygous dominant) then the phenotype is "A" phenotype. If one dominant allele and one recessive allele are present (heterozygous dominant) then the phenotype is "A". Finally, if both recessive alleles "a" are present (homozygous recessive) then the phenotype is "a". Therefore, the answer to your question is the genotype AA would result in an "A" phenotype because the genotype is homozygous dominant.
The phenotype will show the dominant trait. All dominant traits mask recessive ones; If the genotype is heterozygous (One dominant and one recessive) the organism's phenotype will be dominant.
This type of inheritance represents alleles at the same locus where one is recessive to the other. The dominant phenotype occurs in all heterozygous offspring as well as the homozygous dominant offspring. This yields a 3:1 phenotype and a 1:2:1 genotype.
They R pretty wierd!
A genotype consisting of two identical alleles of a gene for a particular trait is called homozygous. This means that both alleles are the same, which can either be dominant or recessive. Homozygous genotypes can result in the expression of a specific trait depending on the alleles involved.
Yes, that's correct. Heterozygous individuals have two different alleles at a specific gene locus, and they can express traits from both alleles. This can result in a combination of traits or an intermediate phenotype that differs from either homozygous condition.
Homozygous individuals have two identical alleles for a particular gene (e.g., AA or aa), while heterozygous individuals have two different alleles for the same gene (e.g., Aa). Homozygous conditions often result in specific traits, while heterozygous conditions can lead to a blending or mix of traits from each allele.
The Punnett square for crossing two heterozygous dogs (Bb x Bb) would result in a 25% chance of offspring with homozygous dominant black fur (BB), a 50% chance of offspring with heterozygous black fur (Bb), and a 25% chance of offspring with homozygous recessive brown fur (bb).