Knockout experiments involving __________ genes
in fruit flies (Drosophila melanogaster) revealed
local controls over gene expression. Fill in the blank(s) with the appropriate word(s).
Answer: homeotic
Biology & Microbiology
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Caldarchaeol lipids are extremely thermostable tetraethers found in many ________.
A. psychrophile archaea B. hypersalinic archaea C. autotrophic archaea D. hyperthermophilic archaea
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Which mammalian group lays eggs?
a. monotremes b. eutherians c. polytherians d. metatherians e. marsupials
Biology & Microbiology
A/the ____ detects a stimulus and sends this information to the nervous system
a. gland b. muscle
c. brain stem d. sensory receptor e. hypothalamus
Biology & Microbiology
All of the ____ are a species.
A. St. Bernard dogs in the world B. white-tailed deer in Michigan C. red-winged blackbirds in the world D. mules in the world
Biology & Microbiology