What are the possible phenotypic variation?

Phenotypic variation, then, is the variability in phenotypes that exists in a population. For example, people come in all shapes and sizes: height, weight, and body shape are phenotypes that vary. … All organisms can have phenotypic variation. In plants, flower color and leaf shape are examples of variable phenotypes.

What are 3 possible phenotypes?

If the only alleles for hair texture were straight and curly, there would be three phenotypes: straight, curly, and wavy. However, you asked for something a little different. You wanted three phenotypes that are all equally represented in the population.

What is a phenotypic variance?

Definition. Phenotypic variance, usually combines the genotype variance with the environmental variance. … Dominance genetic variance refers to the phenotype deviation caused by the interactions between alternative alleles that control one trait at one specific locus.

How do you find phenotypic variation?

Variance Components of a Quantitative Trait

  1. VP = VG + VE + VGE VP = total phenotypic variation of the segregating population. …
  2. VG = VA + VD + VI and the total phenotypic variance can be rewritten as.
  3. VP = VA + VD + VI + VE + VGE
  4. Copyright © 1997.
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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.

How many phenotypes are possible?

A fetus receives one of these three alleles from each of its parents. This produces four possible phenotypes (blood types) and six possible genotypes.

What are examples of phenotypic plasticity?

Phenotypic plasticity refers to the ability of a genotype to express different phenotypes depending on the environment in which it resides. For example, genetically identical water flea (Daphnia) clones can differ in their morphology depending on whether reared in the absence or presence of a potential predator.

What is genotypic and phenotypic variation?

Genetic differences or variation between individuals leads to differences in an individual’s phenotype, trait or risk of developing a disease. … A mendelian trait is one that is controlled by a single locus, for example a single base-pair substitution.

Is all phenotypic variation heritable?

Misconceptions of the Heritability Concept

al., 2008). Heritability is not the proportion of a phenotype that is genetic, but rather the proportion of phenotypic variance that is due to genetic factors.

What is phenotypic variation in bacteria?

Even under laboratory conditions, bacteria often show a high degree of phenotypic variability — cells within an isogenic population displaying variable expression patterns. Positive feedback within a regulatory network has the potential to generate multistationarity — the possibility of a cell to switch between states.

What causes phenotypic plasticity?

Phenotypic plasticity describes the process that allows individuals to alter their phenotype in response to environmental change alter their phenotype due to new environments. … This change in gene expression allows for phenotypic plasticity, as changes in mRNA expression have a direct link to protein abundance.

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What is the importance of phenotypic variation in a population?

Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.

How many possible phenotypes are there for ABO blood groups?

The four basic ABO phenotypes are O, A, B, and AB.

What are the possible phenotypes of the offspring?

Eye color, hair color, pod shape, and flower position are all examples of phenotypes. In this example, it asked you to do a cross between two parents who were homozygous dominant for eye color. Looking at the possible offspring, each box (or possible offspring) has two copies of the dominant gene.

How many different phenotypes are possible for offspring?

Figure 13: The possible genotypes for each of the four phenotypes. Even though only four different phenotypes are possible from this cross, nine different genotypes are possible, as shown in Figure 13.