Question

define inbreeding and heterosis​

Answer 1

heterosis:-

Inbreeding depression occurs when related parents have children with traits that negatively influence their fitness largely due to homozygosity. In such instances, outcrossing should result in heterosis. Not all outcrosses result in heterosis. ... This is a form of outbreeding depression.

inbreeding:-

Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically. ... Inbreeding results in homozygosity, which can increase the chances of offspring being affected by deleterious or recessive traits.

Answer 2

Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically. By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from expression of deleterious or recessive traits resulting from incestuous sexual relationships and consanguinity.

Heterosis, hybrid vigor, or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents. These effects can be due to Mendelian or non-Mendelian inheritance.