What are the features of hnrna, Biology

Assignment Help:

Q. What are the features of hnRNA?

Heterogeneous nuclear RNA (hnRNA) - Primary precursor mRNA transcript made in eukaryotic nucleus are called 'hnRNA,' an abbreviation for 'heterogeneous nuclear RNA. Aspects are as below:

Introns:As many eukaryotic nuclear genes are interrupted by introns, RNA transcripts of intron-containing genes have intronic RNA sequences. Poly A tails at 3'-end: Poly A tails added to 3'-end of most though not all hnRNAs during nuclear RNA processing. These tails are retained in processed mRNA. 5'-Cap structure: A modified GTP is covalently attached to 5'-end of most precursors to mRNA. This cap structure is also retained in processed mRNA. Base Composition and relation to template strand: RNA is synthesized from a DNA template. Sequence of RNA is complementary to DNA template strand and opposite in polarity. C and T in DNA template are transcribed by RNA polymerase as G and A in hnRNA, correspondingly. A and G in DNA template are transcribed as U and C in hnRNA. So mRNA and hnRNA are sequences of A, G, C and U's.


Related Discussions:- What are the features of hnrna

Surface Processes on Earth, Which of the following is not a type of mass mo...

Which of the following is not a type of mass movement that results from the force of gravity? A. Landslide B. Creep C. Deflation D. Mudflow

What is community ecology explain their characterstics, What is Community E...

What is Community Ecology explain their characterstics? Community Ecology: In ecological terms, a community consists of an assemblage of all of the populations living and int

Cellular machinery for the replication of nucleic acids, Which of the follo...

Which of the following statements is true? Answer Viruses are distict from cells by the absence of a lipid membrane around them. Viruses are parasites that require the cell's metab

Agro industrial-chopping and grinding, Chopping/grinding These are the ...

Chopping/grinding These are the processes by which the particle size of cereals, oil cakes and roughages including green fodders and crop residues is reduced employing various

The control group should be identical, If you have a control group for your...

If you have a control group for your experience, which of the following statements is true? A. The control group should be identical to each test group with the exception of one va

Digestion and feeding mechanism, state 5 notification and feeding habits in...

state 5 notification and feeding habits in some animals

Benefit of the double and complete circulation, Q. How many chambers do the...

Q. How many chambers do the mammalian heart and the bird heart have? Concerning temperature maintenance what is the benefit of the double and complete circulation of these animals?

Explain the determination and application of vitamin e, Explain the Determi...

Explain the Determination of Vitamin E DL-α-Tocopherol is oxidized with ferric chloride and the ferrous ions formed are measured colorimetrially with the aid of α,α'-dipyridyl

What is sex-linked traits in genetics, What is Sex-linked Traits in genetic...

What is Sex-linked Traits in genetics? The X-chromosomes carry genes for traits other than sex characteristics. Morgan discovered these sex-linked traits while observing the in

Define about the pseudosquint, Define about the Pseudosquint (Pseudo-false...

Define about the Pseudosquint (Pseudo-false) Pseudosquint is the condition when despite the visual axis being parallel, there , appears to be a squint. Pseudosquint can be conv

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd