How many phenotypes are there for color of snapdragon flowers?
In snapdragons, there are 3 flower colors – red, pink and white.
What is the phenotype of a red snapdragon?
In snapdragons, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (R’). The heterozygous genotype is expressed as pink.
What is the phenotype of the snapdragon offspring?
The genotype for the pink flower is Rr and the genotype for the white flower is rr. This would lead to a 50% chance of the offspring having a phenotype of pink.
What are the two possible phenotypes for flower color?
The phenotype can be either red or white flower color, depending on the genotype.
What are the two elements for flower color in Snapdragon?
Two alleles are red (R) and white (R’).
When the pink snapdragon is self pollinated what phenotypes were produced?
A genetic cross of inbred snapdragons with red flowers with inbred snapdragons with white flowers resulted in F1-hybrid offspring that all had pink flowers. When the F1 plants were self-pollinated, the resulting F2-generation plants had a phenotypic ratio of 1 red: 2 pink: 1 white.
What are the possible phenotypes of the cattle?
Qualitative phenotypes in cattle include blood type, hair color, presence — or absence — of horns and defects such as dwarfism.
What are the possible phenotypes of the offspring?
Eye color, hair color, pod shape, and flower position are all examples of phenotypes. In this example, it asked you to do a cross between two parents who were homozygous dominant for eye color. Looking at the possible offspring, each box (or possible offspring) has two copies of the dominant gene.
How do you find the phenotypic ratio?
Write the amount of homozygous dominant (AA) and heterozygous (Aa) squares as one phenotypic group. Count the amount of homozygous recessive (aa) squares as another group. Write the result as a ratio of the two groups. A count of 3 from one group and 1 from the other would give a ratio of 3:1.
What is pink snapdragon flower pattern of inheritance?
Figure 21: A cross between a red and white snapdragon will yield 100% pink offspring. This pattern of inheritance is described as incomplete dominance, meaning that neither of the alleles is completely dominant over the other: both alleles can be seen at the same time.
What is the phenotype of a plant?
The phenotype of a plant is a term used to describe observable characteristics, such as height, biomass, leaf shape and so on. We use the term phenotype in a more specific context to describe the collective expression of the genotype in conjunction with the environment on a plant’s observable characteristics.
What is incomplete dominance explain with reference to flower Colour is Snapdragon?
This is called as incomplete dominance. For example, flower colour in Mirabilis jalapa (Snapdragon). The red flower is the dominant character and the white flower is recessive character. There is blending of the two alleles. The flowers in the F1 generation will be pink in colour due to mixing of the alleles.