The dominant stage of the moss life cycle is the
A) sporophyte.
B) gametangium.
C) pollen.
D) gametophyte.
Answer: D
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Alternative splicing
_____ results in different proteins in the same family. _____ is important for multicellular organisms with different cell types. _____ results in proteins that can quickly be activated and deactivated. _____ is a gene regulatory mechanism in eukaryotes but not prokaryotes. _____ have pre-RNA that are the same as other genes.
Using a plant for food would be an example of an ecosystem
a. good. b. process. c. service. d. all of these
What is the natural function of restriction endonucleases?
a. research applications b. DNA manipulation in vitro c. defense against viruses that infect bacteria d. regulating bacterial gene expression e. breaking phosphodiester bonds in mammalian DNA
Which is an anaerobic excavate that is an endosymbiont of animals?
a. diatom b. euglenoid c. parabasilid d. actinopod e. dinoflagellate