Table of Contents
Is green peas a genotype or phenotype?
aa
The green pea phenotype has a genotype of aa. When Mendel looked at the results of this mating, he saw that all of the offspring had yellow seeds.
What are the three possible genotypes for flower color in pea plants?
So, for example, in the pea plants above, the possible genotypes for the flower-color gene were red-red, red-white, and white-white. The phenotype is the physical manifestation of an organism’s allellic combination (genotype).
What are 5 examples of phenotype?
In humans, phenotype examples include earwax type, height, blood type, eye color, freckles, and hair color. And phenotypes aren’t just physical traits. Behavior is also considered a phenotype.
What are the two possible phenotypes for peas?
For the pea plants, if the red allele is dominant and the white allele is recessive, only two phenotypes are possible. Both the plants with red-red and red-white genotypes will have the red phenotype, while the plants with the white-white genotype will have the white phenotype.
What is the phenotype in the case of the pea plants?
One out of three of the yellow pea plants has a dominant genotype of YY, and 2 out of 3 has the heterozygous genotype Yy. The homozygous recessive plant has the green phenotype and the genotype yy.
How many different phenotypes are possible?
There are three common alleles in the ABO system. These alleles segregate and assort into six genotypes, as shown in Table 1. As Table 1 indicates, only four phenotypes result from the six possible ABO genotypes.
What is genotype and phenotype in pea plant?
An organism’s genotype is its specific combination of alleles for a given gene. The phenotype is the physical manifestation of an organism’s allellic combination (genotype). For the pea plants, if the red allele is dominant and the white allele is recessive, only two phenotypes are possible.
How do alleles determine genotypes and phenotypes?
Each pair of alleles represents the genotype of a specific gene. Genotypes are described as homozygous if there are two identical alleles at a particular locus and as heterozygous if the two alleles differ. Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism.
Is skin color a phenotype?
Phenotype is the observable physical or biochemical characteristics of an individual organism, determined by both genetic make-up and environmental influences, for example, height, weight and skin colour.
What are the possible genotypes of a pea plant?
With all of the above, the possible genotypes are listed with the dominant trait first (Being either Homozygous (both capital letters) or heterozygous (one capital, one lower case letter)) and the recessive trait being second. A pea plant can carry any combination of those different traits that will effect how the plant looks:
What’s the chances of producing smooth, yellow peas?
100% chance of the offspring have the “SsYy” genotype and the smooth, yellow phenotype. Give the possible phenotypes and the percentage chance for each in the dihybrid cross between pea plant that is heterozygous in producing smooth, yellow peas and another with the same genotype.
How are the phenotypes of an organism determined?
An allele that will not determine phenotype unless the genotype is homozygous in that allele. Mendel’s Principle of Genetics 1. The traits of an organism are determined by its genes. 2. Each organism has two alleles that make up the genotype for a given trait.
Mendel’s hybridization experiments demonstrate the difference between phenotype and genotype. For example, the phenotypes that Mendel observed in his crosses between pea plants with differing traits are connected to the diploid genotypes of the plants in the P, F 1, and F 2 generations.