![]() When the gecko has 2 of the same allele, it is considered to be “ homozygous” for that trait if the alleles for the trait are different from each other, the gecko is considered to be “ heterozygous” for that trait. Speaking specifically about leopard geckos (though this is true of all vertebrates), for each trait, such as pattern, color, size and body proportion, a gecko’s pair of alleles will either be 2 of the same or 2 different ones. Genetics is the study of how the pairs of traits interact, are expressed and are transmitted. Consequently, each creature has a pair of alleles for many of its hereditary traits, one from each parent. This article will provide some very basic information to get the beginner started and will illustrate how the genetics are expressed through a real-life example: a pair of leopard geckos I am breeding and the first 6 offspring they have produced.Īll vertebrates that reproduce through the union of two parents receive genetic material (called “ genes” or “ alleles”) from each parent. The best way to learn is to read about basic genetics and to then learn about the genetic possibilities for the gecko species that most interests the breeder. An understanding of genetics means that the breeder is familiar with terms such as “ dominant”, “ recessive”, “ homo/hetero-zygous”,” polygenetic“, that he or she knows the possible outcomes of the reptile pairings and can also plan for specific outcomes. ![]() In addition, the only way to make a positive contribution to herpetoculture requires the ability to provide the genetic history of the animal he or she produces. A successful reptile breeder, in addition to knowing the mechanics of breeding and caring for hatchlings, must also understand basic genetics in order to plan and execute reptile pairings. ![]()
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