Aa AA aa If A dominant, two phenotypes.
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To increase the number of genotypes and phenotypes in the next apple crop, the farmer can introduce new apple varieties through hybridization or crossbreeding. This can create genetic diversity and lead to a wider range of phenotypes. Additionally, the farmer can incorporate different cultivation practices, such as varying planting densities or nutrient management, to influence the expression of traits and enhance diversity in the crop.
Two
Parental phenotypes are the phenotypes that are seen in the offspring that are the same as the phenotypes of the parents. Recombinant phenotypes are the phenotypes that are the result of recombination events during genetic crossing, resulting in combinations of traits not present in the parents.
The intermediate phenotypes tend to be selected against, resulting in stabilizing selection that favors the extreme phenotypes. This can lead to a reduction in genetic variation within the population, as individuals with intermediate traits are less likely to survive and reproduce.
The proportions of the two phenotypes in the F1 generation remained constant as the number of offspring increased from 10 to 100. This is because the inheritance of traits follows Mendelian principles, and the ratio of phenotypes will only change if there is an assortment such as independent segregation.
the offspring have two factors for each trait
Incomplete dominance
A discrete trait is a trait which doesn't have a range of phenotypes. For example, tongue rolling is a discrete trait as an individual can either roll their tongue or not roll their tongue. There is no phenotype between these two phenotypes.
Four different phenotypes can be produced: AABB, AABb, AaBB, and AaBb. This is the result of different combinations of alleles from each parent in the offspring.
It's expressed when a heterozygous phenotype is between two homozygous phenotypes.