The common thinking is that transcriptionâtranslation coupling is a means for the cell to prevent accumulation of non-functional transcripts in the cytoplasm (;), and hence that it is functionally analogous to nonsense-mediated mRNA decay that occurs in eukaryotic cells (; ;).everal co-transcriptional activities involving RNA as the substrate serve to prevent the occurrence of R-loops, and the coupling of transcription to translation in the bacteria may be seen as a special instance of such a co-transcriptional activity.
Size and Appearance. The main difference between these two types of gravel is the size of the rocks. Pea gravel, as its name implies, is small. Generally the stones are around 1/4th of an inch in diameter.They have a smooth, rounded surface and come in many different soft colors such as light blue, light red and beige. Crushed rock, on the other hand is a little bit larger in diameter around 1/2 to 1 inch.ize and Appearance. The main difference between these two types of gravel is the size of the rocks. Pea gravel, as its name implies, is small. Generally the stones are around 1/4th of an inch in diameter.
This type of natural gravel can be used in the same manner as crushed rock and is most commonly used in the regions where it is produced. Ad. Most other types of landscaping drainage gravel include stones that are either naturally rounded and smooth or manufactured to appear round and smooth.River rock is a popular type of smooth gravel and is usually 1 to 2 inches (approximately 2.5 to 5 cm) in diameter, though it can be found in larger sizes.lmost all types of gravel can be accurately described as loose rock. Some types of landscaping gravel is comprised of smooth round stones, while others are a combination of crushed stone. Gravel can serve a variety of specific purposes, dependent on the size, material type, and the geographic location of the stones.