Ralph’s genotype is AB.
What is the genotype of red rose?
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.
What is the genotype of the 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 genotype of white four o’clock flower?
A red-flowered four-o’clock (any red-flowered four-o’clock) has the genotype RR; a white-flowered four-o’clock has the genotype rr. So, this cross is RR × rr. The F1 offspring will therefore all be Rr, all pink. b.
Short answer (show your work or thinking to get partial credit):
|bc||bbCc (brown)||bbcc (white)|
What happens when you cross two pink RW flowers?
This is an example of blending inheritance. Since neither allele is dominant, they are both expressed and produces the pink variety. … In this cross, all of the offspring would inherit one red allele and one white allele-RW and would be 100 percent pink!
What is phenotype example?
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
What is meant by genotype?
In a broad sense, the term “genotype” refers to the genetic makeup of an organism; in other words, it describes an organism’s complete set of genes. Each pair of alleles represents the genotype of a specific gene. … For example, in sweet pea plants, the gene for flower color has two alleles.
What is the phenotypic ratio when two pink flowers are crossed?
When two plants with pink flowers are crossed, what is phenotypic ratio and genotypic ratio of the offspring. Genotypic ratio = 1: 2 : 1, Phenotypic ratio = 1 : 2 : 1 6. Roan color in cattle is the result of absence of dominance between red and white color genes and the cattle are red and white in color.
Why do red and white flowers interact?
Since diploid organisms have two copies of each chromosome, they have two of each gene. Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. And, if it has a red allele and a white allele, its flowers will be red. …
What is the most common phenotype in a natural population?
The name given to most common phenotype in a natural population is wild type. Wild-type normally refers to the gene or trait which is normally found in populations that are in natural conditions.