Examlex
Identify and state the historical significance of the following:
-Andrew Johnson
Homologous
Referring to structures or genes that are similar in different species due to common ancestry, often performing similar functions.
Orthologs
Genes in different species that evolved from a common ancestral gene by speciation, retaining the same function.
Single Nucleotide Polymorphisms
Variations at a single location in the DNA sequence among individuals, which can affect how humans develop diseases and respond to pathogens, chemicals, drugs, etc.
Pathogenic Variants
Genetic alterations that are directly associated with the development of a disease.
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