Pink flowers result as a result of a genetic phenomenon called co-dominance. It means both alleles are able to express themselves at the same time thus generating a new phenotype that is unique and bares partial simlarity to both parent phenotypes. It also proves the color theory, a body of practical guidance to color mixing and the visual impact of specific color combinations. Red + white = Pink, no matter what type of mixing or crossing occurs.
Incomplete dominance, where the heterozygous phenotype is an intermediate blend of the two homozygous phenotypes.
Assuming that white is recessive to red in this case, then the off spring would all be red but they would be heterozygous red (Rr).
Incomplete dominance. Incomplete dominance occurs when the heterozygous condition results in a phenotype that is intermediate between the two homozygous conditions. In this case, the red and white flower colors mix to produce pink in the offspring.
Incomplete dominance is where the phenotype of the heterozygote is intermediate to both the heterozygotes. The classic example of this phenomenon is pink snapdragons. If you cross red and white snapdragons, you get pink snapdragons, because neither the red or white allele is dominant to the other.
If the flowers are something like PP (purple) and pp (pink), then the flowers will be Pp if you do the traditional square used in most high school classes.
Incomplete dominance, where the heterozygous phenotype is an intermediate blend of the two homozygous phenotypes.
When a red flower crosses with a white flower, it can create a pink flower. Why? Because of incomplete dominance. Incomplete dominance is when the heterozygous phenotype(offspring) is a blend of the two homozygous phenotypes(parents).
hybrid
In a cross between a red flower (homozygous dominant, RR) and a pink flower (heterozygous, RW), the possible offspring genotypes would be 50% red (RR) and 50% pink (RW). Therefore, the chances of producing a red flower are 50%, while the chances of producing a pink flower are also 50%. There would be no chance of producing a white flower in this scenario.
In this scenario, the red flower (R) is dominant, while the white flower (r) is recessive. The pink flower (Rr) is a result of incomplete dominance. When crossing a pink flower (Rr) with a white flower (rr), the possible offspring genotypes are Rr (pink) and rr (white). The Punnett square for this cross would look like this: R | r ---------------- r | Rr | rr ---------------- r | Rr | rr The phenotypic ratio would be 50% pink and 50% white flowers.
Let RR = Red and WW = White and RW = PinkRR X WW = RW (all resulting flowers are pink)Punett Square of pink cross pink:RWRRRRWWRWWWAs you can see, 50% are pink, 25% are red, and 25% are white.This is an example of incomplete dominance in flower colour.
When a red snapdragon and a white snapdragon cross, the offspring will all be pink snapdragons. This is because the red and white alleles mix to produce the pink color, resulting in 100% pink offspring.
Assuming that white is recessive to red in this case, then the off spring would all be red but they would be heterozygous red (Rr).
The blending of the phenotype of the parents in the offspring is known as incomplete. colors of flowers can show incomplete dominance if a red flower is crossed with a white flower and their offspring are pink.
If you cross a red flower with a white flower, you will get a pink flower. This is incomplete dominance.
Incomplete dominance. Incomplete dominance occurs when the heterozygous condition results in a phenotype that is intermediate between the two homozygous conditions. In this case, the red and white flower colors mix to produce pink in the offspring.
Incomplete dominance is where the phenotype of the heterozygote is intermediate to both the heterozygotes. The classic example of this phenomenon is pink snapdragons. If you cross red and white snapdragons, you get pink snapdragons, because neither the red or white allele is dominant to the other.