GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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homozygous
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dominant
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recessive
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heterozygous
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Detailed explanation-1: -Purebred-Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid-Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT. Genotype is the actual GENE makeup represented by LETTERS. Phenotype is the PHYSICAL appearance of a trait, such as a YELLOW (or BLUE) body color.
Detailed explanation-2: -Synonyms: blooded, full-blood, full-blooded. of unmixed ancestry. pedigree, pedigreed, pureblood, pureblooded, thoroughbred.
Detailed explanation-3: -Homozygous, or homozygosity, refers to the inheritance of genes from each biological parent. The variant results from a mutation that changes the DNA sequence making up a gene. Experts refer to variations in genes as alleles. If the alleles are identical, a person is homozygous for that gene.
Detailed explanation-4: -In a purebred strain or breed, the goal is that the organism will “breed true” for the breed-relevant traits. Apomixis and parthenogenesis, types of asexual reproduction, also result in true breeding, although the organisms are usually not homozygous.