Mutations. A mutation is a random change in DNA which therefore affects a gene and/or chromosome . … If a mutation causes a new phenotype that makes an organisms better suited to a particular environment, it can lead to rapid change in the characteristics of the individuals in that species.
Can an organism change its phenotype?
Many organisms have the ability to express different phenotypes in response to environmental conditions. Such phenotypic plasticity allows individual organisms to develop appropriate morphological, physiological, or behavioral traits that better fit a particular environment that they encounter.
What factors influence an organisms phenotype as it grows older?
The correct answer would be A) genes and the environment. The phenotype of an individual is mainly determined by two factors; its genetic make-up and environment.
Can phenotype change without a change in genotype?
Different phenotypes can be generated without changes to the genotype through a process called Epigenetics. Epigenetics, meaning “above genes”, is the study of changes to the phenotype caused by changes in gene expression and not the alteration of the genetic code.
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.
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.
What are the 3 types of phenotypes?
With one locus and additive effects we have three phenotypic classes: AA, Aa and aa.
Is personality a phenotype?
Personality phenotypes are extremely variable. Minor variations in measures and samples influence the number and contents of factors identified. Confidence in any structure would, therefore, be increased with evidence that the phenotypic structure reflects an underlying genetic architecture.