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 genotype is a white flower?
When ever the R gene is present in the genotype of a plant, the flower color is always red. The mutant form of this gene, which is recessive, is often written r. Plants with the genotype RR or Rr have red flowers. Plants with the genotype rr have white flowers.
Is white recessive in snapdragons?
In snapdragons, R is dominant for red flowers and r is recessive for white flowers.
What are the 2 alleles for flower color in Snapdragon?
Hence, flowers of the F1 generation exhibit pink flowers due to mixing of alleles. Thus, the heterozygous genotype is expressed as pink. Two alleles are red (R) and white (R’).
What are the 3 phenotypes for 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 genotype of a heterozygous snapdragon flower?
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 F1 genotype?
F1 Generation Example. If you are crossing two parents that are ‘true breeding’ – meaning they each have homozygous traits (one has dominant traits, the other has recessive traits) – the F1 generation will typically be heterozygous (having a genotype that is heterozygous and a phenotype that is dominant).
What is the genotype of the offspring?
An offspring’s genotype is the result of the combination of genes in the sex cells or gametes (sperm and ova) that came together in its conception. One sex cell came from each parent. Sex cells normally only have one copy of the gene for each trait (e.g., one copy of the Y or G form of the gene in the example above).
What is the genotype of parents?
Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype. Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype.
What are the heterozygous genotypes?
(HEH-teh-roh-ZY-gus JEE-noh-tipe) The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote).
What would the heterozygous genotype be of a flower that is white and red if these traits were said to have incomplete dominance?
In snapdragons, flower color is controlled by incomplete dominance. The two alleles are Red (R) and White (W). … The two alleles are Red (R) and White (W). The heterozygous genotype is expressed as pink.
When a red snapdragon and a white snapdragon mate what is the result in the offspring?
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.
Is PP genotype or phenotype?
Predicting Offspring Phenotypes
Only offspring with the pp genotype will have the white-flower phenotype. Therefore, in this cross, you would expect three out of four (75 percent) of the offspring to have purple flowers and one out of four (25 percent) to have white flowers.
What is genotype of Snapdragon?
Since the snapdragon is controlled by incomplete dominance, one allele for red (R), and one for white (W), would result in a pink flower. … The genotype for the pink flower is RW, and the genotype for the white flower is WW. This would lead to a 50 percent chance of the offspring having a phenotype of pink.
What is the genotype for white fish?
White is the recessive phenotype, and it is produced by the homozygous recessive (aa) genotype.
What is the genotype of a pink carnation?
When the genotype of a carnation is heterozygous for the trait (Rr), the result is a pink color that comes from the incomplete dominance of the alleles. In codominance there are two or more dominant alleles. As a result, both phenotypes are present to a certain level. An example of this is blood type.