Question

1. RNA may be divided into coding RNA and non-coding RNA. Match each term in Column I to the correct group in Column II. Options from Column II can be used more than once. And please explain their roles in each item in column I.

Column I:

1. mRNA
2. rRNA
3. tRNA
4. transfer-messenger RNA (tmRNA)
5. small nuclear RNA (snRNA)
6. small nucleolar RNA (snoRNA)
7. small cytoplasmic RNA (scRNA)
8. siRNA (short interfering RNA)
9. miRNA (microRNA)
10. long non-coding RNA (lncRNA)

Column II

1. coding RNA
2. non-coding RNA

Answer 1

Only mRNA is coding RNA , rest all types of RNA are non-coding.

1.) mRNA ( carries genetic information copied from DNA in the form of series of three base coding , each of which specifies a particular amino acid) ----- coding RNA

2.) rRNA( it is a component of ribosomes, have role in protein synthesis ) --- non-coding RNA

3.) tRNA ( it is a adaptor RNA , provides the interface between nucleic acid language and protein language) --- non-coding RNA

4.) tmRNA ( it recognises ribosomes that have trouble translating an mRNA) -- non coding RNA

5.)Small nuclear RNA ( involved in RNA splicing and maintaining the telomeres ) --- noncoding RNA

6.) Small nucleolar RNA ( involved in chemical modifications such as methylation of rRNA ) -- non coding RNA

7.) Small cytoplasmic RNA ( involved in processing of heterogeneous nuclear RNA ) -- non coding

8.) SiRNA ( gene silencing ) -- non-coding

9.) miRNA ( gene silencing) -- non coding

10.) lcRNA ( serve as molecular signal to regulate transcttransc in response to various signals ) -- non coding