The correct answer is: b. the removal of introns and alternative splicing of exons
Post-transcriptional regulation includes processes of regulation between transcription and translation such as RNA splicing, capping, addition of poly-A tail, RNA editing.
RNA splicing represents the process of RNA processing in which newly synthesized pre-mRNA transcript is converted into a mature mRNA. This process occurs only in eukaryotic organism and includes the removal of introns and joining together the exons. RNA splicing might occur during or immediately after transcription and it is performed by spliceosome (complex of small nuclear ribonucleo proteins).
Alternative splicing is a regulated process in which a single gene can code for multiple proteins because particular exons of a gene may be included within or excluded from the final mRNA.
Oxygen ... The biogeochemical cycle of phosphorus differs from the cycles of carbon and nit.
Answer:
D
Explanation:
Bone marrow contains stems cells which then turn into immature blood cells and they mature there. kinda like a school for young blood cells. they also make white blood cells and platelets.
Answer:
*dark, dense- igneous rocks(gabbro & basalt)
*light colored with mineral crystals- igneous rocks (Rhyolite)
*most common rocks on earth's surface-sedimentary rocks
*found under the oceans- igneous, sedimentary and metamorphic rocks (gabbro, basalt, serpentine, peridotite, olivine and ore minerals)
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