Activity 13.3: Identifying Aliens with Dichotomous Key Directions: Look carefully at the aliens pictured below. Use the dichotomous key to find the scientific name of each one. 00 a. Mouth open ..... b. Mouth not open . go to 2 - go to 4 1 a. Arms . b. No Arms 2 go to 3 Alienus q uadlegicus а. Hairy. b. Not hairy Alienus hairicus Alienus tritoothicus 3 a. No horns b. Horns . go to 5 . Alienus stripicus 4 a. No legs .Alienus blobicus Alienus fuzzicus 5 b. Legs

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Genomics

Genes are responsible for transmitting the characters located on the chromosomes from one individual to another across the generations. Genetics is the study of different genes that are involved in different functions. Genetics is a branch of biology that studies genes, genetic diversity, and heredity in living organisms. The genetic system consists of genetic notations, which is a system of signs and symbols. Genotype refers to the organism's genetic composition, and phenotype refers to the observable property of the organism.