How does environment affect phenotype?

How does environment affect phenotype?

Environmental factors that play a role include how dry your mouth is or how recently you have eaten. The degree to which your phenotype is determined by your genotype is referred to as ‘phenotypic plasticity’. If environmental factors have a strong influence, the phenotypic plasticity is high.

What causes differences in phenotypes?

An organism’s phenotype results from two basic factors: the expression of an organism’s genetic code, or its genotype, and the influence of environmental factors. Both factors may interact, further affecting phenotype.

How do environmental factors affect genetic variation?

These results suggest that ecological factors can have strong impacts on both population size per se and intrapopulation genetic variation even at a small scale. On a more general level, our data indicate that a patchy environment and low dispersal rate can result in fine-scale patterns of genetic diversity.

What are the factors that affect the phenotypic variation?

Two types of factors are recognized as contributing to the phenotypic variation in a population, genetic and environmental.

What is the difference between environmental factors and hereditary factors?

Your genes hold the basic instructions for your body to grow and function, but they are far from the only thing controlling your traits. Most traits are shaped both by a person’s genes and by environmental factors. Environmental factors include everything outside of DNA that affects your traits.

What are the environmental causes of variation?

Environmental causes of variation Characteristics of animal and plant species can be affected by factors such as climate, diet, accidents, culture and lifestyle. For example, if you eat too much food you will gain weight, and if you eat too little you will lose weight.

How do environmental factors affect phenotypic traits?

The greatest of environmental factors on phenotype is on phenotypic plasticity, phenotypes that may change due to changes in the environment; ex: snowshoe hare have brown-colored fur in summer/spring and white fur in winter. Environmental factors may affect gene expression which may result in normal/abnormal phenotypic changes.

Does phenotypic plasticity HELP plants cope with environmental factors?

Phenotypic plasticity is considered one of the major means by which plants can cope with environmental factor variability. Nevertheless, the extent to which phenotypic plasticity may facilitate survival under environmental condition changes still remains largely unknown because results are sometimes controversial.

How does the environment affect the variation in DNA?

Such variation among organisms with virtually identical chromosomal DNA sequences has largely been attributed to the effects of environment. Environmental factors can have a strong effect on some phenotypes, but evidence from both animal and human experiments suggests that the impact of environment has been overstated and that our views on the

Why do humans have different phenotypes?

Environment, geographic location and limited/or no outside influences add up to people of all different phenotypes, which figure into our genetics. As human beings, our beginnings trace genetically back to Sub-Saharan African.