Question

The physical manifestation of an organism's genes is its

• A. Environment
• B. Phenotype
• C. Genetic code
• D. Genotype

Answer 1

The correct option is B Phenotype

The phenotype is the observable physical properties of an organism which include the organism's appearance, development, and behaviour.

An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes. Due to the influence of environmental factors, organisms with identical genotypes, such as identical twins, ultimately express non-identical phenotypes because each organism encounters unique environmental influences as it develops. Examples of phenotypes include height, wing length, and hair colour. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells

So, the correct answer is 'Phenotype'