Table of Contents
- 1 What is phenotypic and genotypic variation?
- 2 What are the three main sources of phenotypic variation?
- 3 What are the two main factors responsible for phenotypic variation?
- 4 What is genotypic variability?
- 5 What does genotypic variance mean?
- 6 How does phenotype depend on genotype?
- 7 What is a phenotypic variation?
- 8 What is phenotypic variance?
What is phenotypic and genotypic variation?
variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).
What are the three main sources of phenotypic variation?
Overall, the main sources of genetic variation are the formation of new alleles, the altering of gene number or position, rapid reproduction, and sexual reproduction.
What are the sources of phenotypic variance?
The phenotypic variation in populations is the result of genetic variation and two nongenetic sources of variation, namely, environmentally induced variation (EIV) and stochastic developmental variation (SDV).
What are the two main factors responsible for phenotypic variation?
Two types of factors are recognized as contributing to the phenotypic variation in a population, genetic and environmental.
What is genotypic variability?
Genotypic variation is the difference in genotypes between individuals of the same species or between different species caused by genetic mutation, an abnormal occurrence during meiosis, or gene flow.
Which of the following is a difference between genotypes and phenotypes quizlet?
What is the difference between genotype and phenotype? The phenotype is an organism’s physical appearance, and the genotype is the genetic makeup.
What does genotypic variance mean?
Genotypic variation is the difference between individuals of the same species or between two different species. Since each individual has a different blueprint, there are many ways to compare genotypes, which means there is a lot of genotypic variation.
How does phenotype depend on genotype?
Definitions: phenotype is the constellation of observable traits; genotype is the genetic endowment of the individual. Phenotype = genotype + development (in a given environment). In a narrow “genetic” sense, the genotype defines the phenotype.
Did genotypic variance and environmental factors affect the phenotypic characteristic of a plant?
Both general environmental variance and genotype by environment interaction are aspects of a characteristic known as phenotypic plasticity. Some researchers believe that genotype by environment interaction provides the best estimate of the potential for phenotypic plasticity to evolve.
What is a 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 is 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.