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5' cap and poly-A tail. Splicing, introns, and exons. Skip to main content. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Post-transcriptional regulation occurs in eukaryotes, stabilizing mRNA for translation. DNA transcribes into RNA, with exons coding for proteins and introns removed by spliceosomes. The mRNA acquires a 5' prime cap and 3' prime poly-A tail for protection and translation promotion.
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Course: AP®︎/College Biology > Unit 2. Lesson 8: Cell compartmentalization and its origins. Prokaryotic and eukaryotic cells. Intro to eukaryotic cells. Endomembrane system. The endomembrane system. Endosymbiosis theory. Mitochondria and chloroplasts. Prokaryotes and eukaryotes review.
Course: Algebra 2 > Unit 5. Lesson 3: End behavior of polynomials. Intro to end behavior of polynomials.
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Polynomials get their name from the prefix "poly", which means many. In this unit, you'll learn what polynomials are and the many things that you can do with polynomials - including addition, subtraction, and multiplication.
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Converting to larger or smaller. Learn. Converting units: metric distance. Converting units: centimeters to meters. Metric units of mass review (g and kg) Metric units of length review (mm, cm, m, & km) Metric units of volume review (L and mL) U.S. customary and metric units. Practice.
Why form chemical bonds? The basic answer is that atoms are trying to reach the most stable (lowest-energy) state that they can. Many atoms become stable when their valence shell is filled with electrons or when they satisfy the octet rule (by having eight valence electrons). If atoms don’t have this arrangement, they’ll “want” to reach it by gaining, losing, or sharing electrons via ...