Answer:
D. 4E-BP1 binding to elF4E prevents loading of the mRNA onto the ribosome.
Explanation
In eukaryotic organisms, the eIF4E translation initiation factor functions by directing the ribosomes to the 5'-terminal cap structure of the messenger RNA (mRNA) in order to start the translation. Moreover, phosphorylation is a posttranslational modification of specific amino acids on proteins that play diverse cellular functions by altering protein stability, location, and/or enzymatic activity. It has been shown that elF4E phosphorylation is increased in response to cellular stimuli that induce translation in the ribosomes (e.g., growth factors, hormones, etc). The eukaryotic translation initiation factor 4E (eIF4E)-binding protein 1 (4E-BP1) is a repressor of mRNA translation which is phosphorylated and inactivated by growth factors and hormones, thereby inhibiting 4E-BP1 binding to elF4E and consequently activating translation.
Volcanoes and tectonic plates enrich land formation. When a volcanic eruption occurs, materials are brought to the surface that results in the formation of new islands. The actions of converging tectonic plates have created the most beautiful landforms and oceanic trenches. Also, eruptions better the soil quality in a given location. The mineral deposits emitted during an eruption is absorbed by the soil and becomes a lifelong source of nutrition.
A herbivore is vegetarian and will not eat any animal products but an omnivore will eat both plant and animal products.
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❖ B. Punnet Square is a chart used to show the possible outcomes of allele combinations that parents can pass on to their offspring.
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