Which of these plays a role in the regulation of transcription in both prokaryotic and eukaryotic cells?
A) RNA splicing
B) attachment of RNA polymerase to the promoter
C) transcription factors
D) gene operons
B
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____ is the name of the gene that may be important to language, as mutations in this gene are implicated in speech pathologies
Fill in the blank with the appropriate word.
Salivary glands secrete _________ to start the digestion of ___________.
A. amylase, starch B. trypsin, proteins C. amylase, fats D. pepsin, proteins E. lactase, milk
Saltmarsh cordgrass is known as a(n)_____ because patches slow the velocity of incoming tides and stabilize stormy
beach habitat.
a. parasite b. foundation species c. symbiote d. mimic e. ecotone
Which statement about the megasporocyte is true?
a. It undergoes meiosis to produce three haploid cells. b. It is a diploid cell located within an ovule. c. It divides mitotically to form a male gametophyte. d. It plays an important role in cross-pollination. e. It will give rise to the generative cell.