What 2 blood phenotypes have 2 genotypes?
Indeed, “codominance” is the specific term for a system in which an allele from each homozygote parent combines in the offspring, and the offspring simultaneously demonstrates both phenotypes. An example of codominance occurs in the human ABO blood group system.
|Blood Type||Related Genotype(s)|
Can there be two genotypes?
Human blood type is determined by co-dominant alleles. … A description of the pair of alleles in our DNA is called the genotype. Since there are three different alleles, there are a total of six different genotypes at the human ABO genetic locus. The different possible genotypes are AA, AO, BB, BO, AB, and OO.
What are 2 examples of genotypes?
Other examples of genotype include: Hair color. Height. Shoe size.
- A gene encodes eye color.
- In this example, the allele is either brown, or blue, with one inherited from the mother, and the other inherited from the father.
- The brown allele is dominant (B), and the blue allele is recessive (b).
What are the phenotypes for genotypes?
A phenotype is an individual’s observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.
What is the genotype of AB+?
However, if someone were to have the genotype AB, they would have blood type AB because both the A and B alleles are dominant.
|Blood Type AB||Genotype AB|
|Blood Type O||Genotype OO|
What does AA genotype mean?
The term “homozygous” is used to describe the pairs “AA” and “aa” because the alleles in the pair are the same, i.e. both dominant or both recessive. In contrast, the term “heterozygous” is used to describe the allelic pair, “Aa”.
Can two genotypes have the same phenotype?
The answer is yes, two different genotypes can result in the same phenotype. Remember, the recessive phenotype will be expressed only when the dominant allele is absent, or when an individual is homozygous recessive (tt) (Figure below).
What are 3 examples of genotype?
Examples of Genotype:
- Height. For an individual’s gene makeup there is tall variety (T) and there is short variety (s). T and s are called the alleles. …
- Freckles or no freckles. Again the information that is passed from parent to child is carried in the cell of the genotype. …
- Lactose intolerance.
Is PP genotype or phenotype?
There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).
Which statement best contrasts genotype and phenotype?
Terms in this set (7) Which statement best contrasts genotype and phenotype? Genotype describes an animal’s genetic traits, while phenotype describes an animal’s observable traits.
What are genotypes and phenotypes in Punnett Squares?
The two things a Punnett square can tell you are the genotypes and phenotypes of the offspring. A genotype is the genetic makeup of the organism. … The phenotype is the trait those genes express. Eye color, hair color, pod shape, and flower position are all examples of phenotypes.
What is phenotype and genotype quizlet?
Genotype refers to the alleles you possess for a particular gene or set of genes. Phenotype is the physical trait itself, which may be influenced by genotype and environmental factors.
What are the phenotypic and genotypic ratios?
The phenotypic ratios are the ratios of visible characteristics. The genotypic ratios are the ratios of gene combinations in the offspring, and these are not always distinguishable in the phenotypes.