An organism's genotype is the entire set of genes that it carries in its genome, and its phenotype is the observable effect of those genes on the body and behavior of the organism. Biologists draw a distinction between g... More »

An example of a genotype is an organism's blood type, while an example of a phenotype is its height. Height can be affected by an organism's poor diet while developing or growing up. More »

A plant whose genotype is represented with the alleles TT has the phenotype of a tall plant. Since T represents a tall plant and it is the only type of allele present in the plant's genotype, the plant phenotypically man... More »

An example of a genotype is an organism's blood type, while an example of a phenotype is its height. Height can be affected by an organism's poor diet while developing or growing up. More »

A test cross is an important technique in breeding analysis where an organism having a dominant phenotype and an undetermined genotype is crossed with a homozygous recessive organism. The purpose of a test cross is to id... More »

The idea of an extended phenotype refers to the expression of genes in the behavior of an organism rather than its physical composition. The way a beaver makes a dam is influenced by the genetic makeup of the beaver, eve... More »

A Mendelian trait is controlled by one gene and features a one-two-one genotype ratio and a three-one phenotype ratio. These ratios exist because these genes possess two alleles. More »

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