a gene or heritable characteristic carried by a sex chromosome

Observed trait of an organism that masks the recessive allele of a trait

The observable or detectable characteristics of an individual organism--the observable expression of a genotype

In humans and other mammals a sex chromosome, two of which are normally present in female cells and only one in male cells

A genotype consisting of two different alleles of a gene for a particular trait. Also referred to as a hybrid

Condition in which a trait in an individual is intermediate between the phenotype of its two parents (blended)

An alternate form of a gene for one trait.

The trait (allele) of an organism that can be masked by the other form of that trait (allele)

Transmission of genetic traits from parent to offspring

A genotype consisting of two identical alleles of a gene for a particular trait

The study of heredity and the variation of inherited characteristics

Person or other organism that has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease

In humans and other mammals a sex chromosome that is normally present only in male cells.

The smallest pieces of chromosomes; determine what we look like

The actual code that alleles or genes posses (eg. TT, Tt, or tt). The gene may or may not be expressed when you observe a living organism

Diagrams that are used to trace the inheritance of a specific trait, abnormality, or disease. Standard symbols are used to represent males, females, mating and offspring

Relating to two alleles of a gene pair in a heterozygote that are both fully expressed. When alleles for both white and read are present in a carnation, for example, the result is a rad and white carnation

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