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Line Of Descent Vocabulary

Across
The basic unit of inheritance carried by the chromosomes
A trait that helps identify an organism
An organism related to another organism that lived earlier
The passing of traits from parents to offspring
Down
Variations of genes that determine traits of organisms
An evolutionary tree diagram based on shared characteristics
Offspring that are at the same stage of descent from a common ancestor
The range of expressing a trait within a population
A group of organisms that can interbreed or pass on its genes to following generations
A structure made of coiled DNA that transfers hereditary information to the next generation