Which type of RNA is the longest?

mRNA
The mRNA has a complete nucleotide sequence so it is considered as the largest RNA.

Which is longer DNA or mRNA?

RNA can form into double-stranded structures, such as during translation, when mRNA and tRNA molecules pair. DNA polymers are also much longer than RNA polymers; the 2.3m long human genome consists of 46 chromosomes, each of which is a single, long DNA molecule. RNA molecules, by comparison, are much shorter3.

Which RNA has the shortest lifespan?

A) tRNA – It is called transfer RNA, soluble RNA or sRNA. It constitutes about 15\% of the total RNA. It is the smallest or short stable RNA consisting of 70-85 nucleotides.

What is the length of the RNA?

According to the length of RNA chain, RNA includes small RNA and long RNA. Usually, small RNAs are shorter than 200 nt in length, and long RNAs are greater than 200 nt long.

What are the 4 types of RNA?

They are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). rRNA forms ribosomes, which are essential in protein synthesis.

Is RNA smaller than DNA?

In addition, because they are copied from only a limited region of the DNA, RNA molecules are much shorter than DNA molecules. A DNA molecule in a human chromosome can be up to 250 million nucleotide-pairs long; in contrast, most RNAs are no more than a few thousand nucleotides long, and many are considerably shorter.

What is RNA half-life?

Results. Using a combination of microarrays, quantitative RT-PCR and a new fitting method for determining RNA decay rates, we found a median half-life of 2.4 minutes and a median decay rate of 2.6 minutes for expressed genes – twofold faster than that reported for any organism.

Does RNA stay in the nucleus?

This particular one, like most RNAs, are made in the nucleus and then exported to the cytoplasm where the translation machinery, the machinery that actually makes proteins, binds to these mRNA molecules and reads the code on the mRNA to make a specific protein.

What is the size of DNA and RNA?

A DNA molecule in a human chromosome can be up to 250 million nucleotide-pairs long; in contrast, most RNAs are no more than a few thousand nucleotides long, and many are considerably shorter.

What is the size of DNA?

“At actual size, a human cell’s DNA totals about 3 meters in length.” McGraw Hill Encyclopedia of Science and Technology. New York: McGraw Hill, 1997. “If stretched out, would form very thin thread, about 6 feet (2 meters) long.”