The spliceosome is a complex of small nuclear RNA (snRNA) and small nuclear protein (snRNP) molecules, snRNAs and snRNPs.snRNPs include U1, U2, U4, U5 and U6.his removal is done in a coimplex protein structure called the spliceosome. The spliceosome splices out the non-coding introns from the primary mRNA transcript, and stiches the exons back together into the mature mRNA transcript.
Mercury is the first planet from Sun and Earth is the third planet from the Sun. Mercury is an average distance of 48 million miles (77 million km) from Earth. The precise distance between the two planets depends on where they are in their respective orbits.
So, Mercury may be the closest planet to the Sun, but it can also be one of the coldest. Even when you are on the side of Mercury that is receiving heat and light directly from the sun, temperatures on Venus are even hotter.n the picture above, taken from a satellite orbiting Earth, you can see little Mercury in front of the gigantic Sun. This small planet is so close to the Sun that it only takes it 88 days to orbit the star, compared with Earth's 365 days and Pluto's 248 years.