outcross

A farmer carefully selects two unrelated cows for an outcross in his herd.

Definition

1. Noun:

   • A cross between individuals of different breeds or strains: "outcross" refers to the mating of two individuals that are not closely related, typically within the same species but from different genetic lines, often to introduce new genetic material or reduce inbreeding.

2. Verb:

   • To mate individuals from different breeds or strains: The action of crossing an organism with one from a different, unrelated line within the same species.

Usage Examples

• Noun:

  • The breeder used an outcross to improve the health of the dog population. (A mating between unrelated individuals to enhance genetic diversity.)

• Verb:

  • They decided to outcross the herd to avoid genetic defects. (They mated animals from different lineages to prevent hereditary problems.)

Advanced Usage

• "outcrossing in plant breeding": a technique where a plant is crossed with a genetically different individual of the same species to increase vigor.
  • Farmers often practice outcrossing to produce more resilient crops. (They deliberately cross plants from different lines for better yield.)

Variants and Related Words

• Outcrossing (n): the process or act of performing an outcross.
  • Controlled outcrossing is a key strategy in animal husbandry. (The deliberate mating of unrelated individuals.)

Synonyms

• Crossbreeding: the act of mating individuals from different breeds or varieties.
• Outbreeding: the practice of breeding from unrelated parents.

Antonyms

• Inbreeding: the mating of closely related individuals, often leading to genetic problems.

Related Idioms

• None directly associated; the term is technical and used primarily in genetics and agriculture.