If n = the number of gene pairs, then (2n + 1) will determine the total number of categories of phenotypes. Note that genotype (fixed at fertilization) establishes the range in which a phenotype may fall, but environment influences how much genetic potential will be realized.
How many possible phenotypes are there?
When the gene for one trait exists as only two alleles & the alleles play according to Mendel’s Law of Dominance, there are 3 possible genotypes (combination of alleles) & 2 possible phenotypes (the dominant one or the recessive one).
What determines how many phenotypes for a given trait?
The number of phenotypes produced for a given trait depends on how many genes control the trait. What is meant by the term single-gene trait? A single-gene trait is a trait controlled by one gene.
What are the 5 phenotypes?
- Eye color.
- Hair color.
- Sound of your voice.
- Certain types of disease.
- Size of a bird’s beak.
- Length of a fox’s tail.
- Color of the stripes on a cat.
What is phenotype example?
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
Is AA a genotype?
What is a Genotype? … There are four hemoglobin genotypes (hemoglobin pairs/formations) in humans: AA, AS, SS and AC (uncommon). SS and AC are the abnormal genotypes or the sickle cells. We all have a specific pair of these hemoglobin in our blood which we inherited from both parents.
What are the 3 types of phenotypes?
With one locus and additive effects we have three phenotypic classes: AA, Aa and aa.
What is the difference between phenotype and phenotyping?
Genotype versus phenotype. An organism’s genotype is the set of genes that it carries. An organism’s phenotype is all of its observable characteristics — which are influenced both by its genotype and by the environment. … For example, differences in the genotypes can produce different phenotypes.
How do new phenotypes originate?
A new phenotype conveys viability on a new carbon source, and can come about through genetic changes, such as the addition of new enzyme-coding genes to a genome as a result of horizontal gene transfer and recombination (Hosseini et al., 2016).