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 two factors control phenotype?
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.
What factors affect the phenotype?
Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal’s genes are expressed, which ultimately affects the animal’s phenotype.
What controls the phenotypes we see?
These characteristics are a product of genetic inheritance, or inheriting DNA from your parents. The DNA you inherit changes your traits, which we call your phenotype. Different combinations of genes produce different phenotypes. However, it’s not just the batch of DNA you inherit that controls your phenotype.
What are the 2 main things that determine an organism’s phenotypic traits?
To summarize, two things determine the traits an organism has: its genotype and the dominance or recessiveness of the alleles it has. Some traits, like flower color in peas, are controlled by a single gene, but ultimately many if not most traits in an organism are controlled by more than one gene.
What is an example of phenotype?
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
What are the 3 types of phenotypes?
With one locus and additive effects we have three phenotypic classes: AA, Aa and aa.
Can the environment affect a person’s phenotype how?
Effects of Environment on Phenotype. Genes play an important part in influencing phenotype, but genes are not the only influence. Environmental conditions, such as temperature and availability of nutrients can affect phenotypes. … The mutated enzyme is heat-sensitive; it fails to work at normal body temperatures.
Can ones genotype change?
Genotype generally remains constant from one environment to another, although occasional spontaneous mutations may occur which cause it to change. However, when the same genotype is subjected to different environments, it can produce a wide range of phenotypes.
How do phenotypes change over time?
The phenotype may change constantly throughout the life of an individual because of environmental changes and the physiological and morphological changes associated with aging. … Three types of natural selection, showing the effects of each on the distribution of phenotypes within a population.
What is the difference between phenotype and phenotyping?
Genotype versus phenotype. An organism’s genotype is the set of genes that it carries. An organism’s phenotype is all of its observable characteristics — which are influenced both by its genotype and by the environment. … For example, differences in the genotypes can produce different phenotypes.