A mating pattern where individuals with similar phenotypes or genotypes mate with one another more frequently.

The distribution of genes or chromosomes into gametes during meiosis.

The inability to stand or maintain posture due to motor incoordination.

A class of echinoderms that includes starfish or sea stars.

A condition of physical weakness or lack of strength.

A group or tribe; context-dependent, not a standard biological term.

In genetics, refers to the parts of chromosomes extending from the centromere; also anatomical limbs in animals.

Describes organic compounds containing a planar ring structure with delocalized electrons, such as benzene.

A collection of clones or DNA sequences that are individually stored and cataloged for easy access.

Defines acids as substances that increase the concentration of H+ ions in aqueous solution.