All living organisms can be divided into four nutritional classes based on how they obtain which two resources?
A. nitrogen and carbon
B. oxygen and nitrogen
C. carbon and energy
D. carbon and oxygen
C. carbon and energy
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The ability to live in a semi-submerged state, have a high salinity tolerance, and possess hollow tubes for root oxygenation best describes the dominant eastern North American tidal plant
A) bald cypress (Taxodium distichum). B) bayberry (Myrica pensylvanica). C) cordgrass (Spartina alterniflora). D) rockweed (Fucus spp.).
Two proteins interact to form a multimeric complex. When one of the proteins is mutated, there is a substantial loss of functional activity in the multimeric protein. This type of mutation is classified as __________
A) amorphic B) hypomorphic C) hypermorphic D) neomorphic E) dominant negative
You have discovered a gene that appears to be crucial to the development of the nervous system in C. elegans. However, you have been unsuccessful in creating embryos in which this gene is knocked out. How might you study the function of this gene in C
elegans without creating a "knockout" mutant? A) CRISPR/Cas targeted gene disruption B) RNAi gene knockdown C) transcriptional activator-like effector nucleases (TALENs) targeted gene disruption D) next-generation sequencing. E) restriction endonuclease mapping.
During embryonic development, most of the skeleton is first formed of _____
cartilage collagen fibers calcium chondrocytes