A ________ is a complex of RNA and protein that serves to remove introns from pre-mRNA.
Fill in the blank(s) with the appropriate word(s).
spliceosome
Biology & Microbiology
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Even though nitrogen constitutes 78% of Earth's atmosphere, the amount available for living things nearly all comes from
A. a few groups of nitrogen-fixing bacteria. B. the breakdown of minerals. C. a few genera of detritivores. D. the breakdown of dead plants. E. nitrogen-containing fertilizers.
Biology & Microbiology
A plant embryo enclosed in a protective covering is a(n)
A. pollen. B. egg. C. seed. D. spore.
Biology & Microbiology
Both the northern coniferous forest and the temperate rain forest are dominated by evergreen vegetation. What are the reasons in each biome?
What will be an ideal response?
Biology & Microbiology
Which of the following would be considered a heterozygous dihybrid genotype?
(a). Ww (b). sS (c). WWSs (D). WWss (e). WwSs
Biology & Microbiology