Is a red flower homozygous or heterozygous?
|
Yes, if the type of inheritance is incomplete dominance, the heterozygous genotype Rr will be a blend of the R and r alleles. Show Assuming that R represents the red color allele for petal color, and r represents the white color allele, the homozygous RR genotype will produce the red color phenotype, the heterozygous Rr genotype will produce the pink color phenotype, and the homozygous rr genotype will produce the white color phenotype. Neither the red allele nor the white allele is dominant, and the Rr genotype produces a blended color. This is the type of inheritance governing the red, pink, and white flower color in snap dragons and some other flowers like tulips. There are many ways to represent the alleles and genotypes for incomplete dominance between homozygous red and homozygous white flowers, such as snap dragons. They are: Red, Pink, White Genotypes: I personally prefer not to use a lowercase letter to represent an allele in incomplete dominance, because of the fact that a lowercase allele so often represents a recessive allele. However, in incomplete dominance, neither allele is dominant or recessive. Answer Verified Hint: Whenever dominant and recessive character plants are crossed in a hybridization experiment, the plants produced in the F1 or Filial progeny always resembles the trait of either one of their parents, and the trait of another parent is not seen. Complete answer: The color of the flower of the pea plant, the red color flower resembles the dominant character (the expressed character) whereas the white color of the flower resembles the recessive character (the unexpressed character in a dominant-recessive pair) In the F1 generation, The genotype of all the plants is Rr (heterozygous). The phenotype of all the plants is red. After crossing both the plants. The plants in the F1 generation bear all red flowers. The genotype of the parent red flower is RR because it possesses the dominant character for the flower color and the genotype of the parent white flower is rr because it possesses the recessive character for the flower color. The gametes produced by the red flower is either R or R and by the white flower is either r or r. As a result of the hybridization experiment, we are obtaining all the offspring’s genotypes as RR and its phenotype is observed as all red flowers. Hence, their genotypic and phenotypic ratio is 100%. Thus, option A is the correct answer Note: Based on these observations, Mendel proposed that something was being stably passed down unchanged from parents to offspring through gametes over successive generations (F1 & F2). He called these things factors. Now it is popularly known as' Gene'. Is a red flower homozygous?Assume that the dominant allele R gives rise to red flowers, while the recessive allele r gives rise to white flowers. Therefore, a homozygous red-flowered plant will have the RR genotype, while the homozygous white-flowered plant will have the rr genotype.
What is the genotype for red flower?A red flower is homozygous for the red allele and will have the genotype RR.
What is the heterozygous for flower color?Two different alleles at the same genetic locus representing a trait are said to be heterozygous at that locus. In the example of flower color in peas, PP and pp are homozygous for purple and white flowers, respectively, with Pp as the heterozygous type.
What is the heterozygous red dominant flower?When heterozygous red (dominant) flower (Rr) is crossed with the white flower rr, red and white flowered plants will be produced in the equal ratios. Hence, the correct answer is the option A.
|
