Are white or purple flowers dominant?
These are the parental generation. Their offspring—the first filial, or F1, generation—each receive one purple allele and one white allele. Since all of the offspring have the purple phenotype, this tells us that the purple allele is dominant to the white allele.
What is the probability of a white flower?
Garden Pea Characteristics Revealed the Basics of Heredity
| The Results of Mendel’s Garden Pea Hybridizations | ||
|---|---|---|
| Characteristic | Contrasting P Traits | F1 Offspring Traits |
| Flower color | Violet vs. white | 100 percent violet |
| Flower position | Axial vs. terminal | 100 percent axial |
| Plant height | Tall vs. dwarf | 100 percent tall |
Is flower color a dominant trait?
An example of a dominant trait is the violet-colored flower trait. For this same characteristic (flower color), white-colored flowers are a recessive trait.
Is purple flower dominant?
Purple flowers are dominant, so two P alleles or one P and one p alleles are needed for purple flowers.
What flower color is dominant?
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| Trait | Dominant Expression | Recessive Expression |
|---|---|---|
| Color of seed albumen (Y) | Yellow | Green |
| Color of flower (P) | Purple | White |
| Form of ripe pods (I) | Inflated | Constricted |
| Color of unripe pods (G) | Green | Yellow |
Which color flower is the recessive gene?
According to Mendelian inheritance, the presence of even one dominant allele in the genotype will result in the expression of a dominant allele. The white colour of the flower is a recessive trait. The genotype will have to be homozygous recessive to express this phenotype.
What is the probability to have white flower if two pink flowers are bred?
If a plant with pink flowers is crossed with a plant with white flowers, again the flower color types of the offspring are independent of each other, and in this case each offspring plant has pink flowers with probability 1/2, and white flowers with probability 1/2.
What is the probability that an offspring of the parent generation will have white flowers?
The probability that one of their offspring will have white flowers is 1/4 .
What is the probability that the offspring of the cross has white flowers?
Only offspring with the bb 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. These are the same percentages that Mendel got in his first experiment.
Can a white flower be heterozygous?
Incomplete dominance means that neither color shows dominance in the hybrid generation. This means that instead of solid red or solid white flowers, the heterozygous plants will display a mixture of both colors.
What is the genotype of white?
White fur color is the recessive phenotype, with a aa genotype.
What determines the color of flowers?
Like humans, flowers inherit their appearance from genes. Pigments are “born” into these plants, producing a range of colors across the spectrum. The same chemical, carotenoid, that produces pigment in tomatoes and carrots, also produces yellow, red, or orange color in certain flowers.
What is the genotype of black chickens?
The black color is represented by allele B and white color by allele W , as neither of these allele can dominate over the other. On mating a black chicken with white chicken, the offsprings will inherit B allele from black parent and W allele from white parent. The genotype of offsprings will be BW.
Is PP recessive?
PP and pp individuals are called homozygotes because both of their alleles are the same form, with PP individuals having two dominant alleles and pp individuals having two recessive alleles.
What does genotype pp mean?
There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).