What are the genotypes of the cross between snapdragons both with pink flowers?
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 is the phenotype of a snapdragon?
This snapdragon’s phenotype would be red. Correct! Since the snapdragon is controlled by incomplete dominance, one allele for red (R), and one for white (W), would result in a pink flower.
What inheritance does the pink colored snapdragon have?
Question: The inheritance of flower color in snapdragons illustrates the principle of incomplete dominance. The genotype RR is expressed as a red flower, Rr yields pink flowers, and rr produces white flowers.
Is a pink snapdragon dominant?
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 phenotypic ratio for F1 generation when crossing a red Snapdragon with a pink Snapdragon?
Monohybrid Cross Problem Set
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 would be the genotypic and phenotypic ratios of the offspring?
Capital letters represent dominant alleles and lowercase letters represent recessive alleles. 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.
What are the 3 phenotypes of snapdragons?
The question tells us that there’re three potential phenotypes for this flower color trait in snapdragon plants, red flowers, white flowers, or they can have pink flowers.
What is the probability when a pink is crossed with a white snapdragon?
Pink and white in 1 : 1 ratio.
When true breeding red snapdragons are crossed with true breeding white snapdragons the progeny have pink flowers This is an example of?
The F1-hybrid plants have a different phenotype (pink flowers) than either of the true-breeding parents. This is an example of incomplete dominance. When the F1-hybrid plants are self-fertilized, both parental phenotypes (red flowered plants and white flowered plants) reappear in the F2 generation.
What are the 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.
What type of inheritance is displayed by the snapdragon flower shown in the crosses above?
One allele is NOT always completely dominant over another allele. Sometimes an individual has a phenotype between the two parents because one allele is not dominant over another. This pattern of inheritance is called incomplete dominance. For example, snapdragon flowers show incomplete dominance.
What is the phenotypic ratio of the f1 cross?
All members of the F1 generation are heterozygous and share the same dominant phenotype (2), while the F2 generation exhibits a 6:2 ratio of dominant to recessive phenotypes (3).
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 the phenotypic ratio of the offspring?
The phenotypic ratio is the distribution pattern (expressed as a ratio) of the physical characteristics in the offspring obtained after a genetic cross. So, genotypic ratio and phenotypic ratio are the two types of genetic ratios used to express the genotype and the phenotype of offspring from a genetic cross.
In which Cross will you get all pink flowers?
In Mirabilis, red (RR) and white (rr) flower produces pink (Rr) flower.