Question

Which one is non-genetic RNA?
A. tRNA
B. rRNA
C. mRNA
D. all the above

Answer 1

Hint: Non-genetic RNA which is transcribed from DNA but it is not further Tran located into amino acids during protein synthesis.

Complete answer:
In order to solve this question, we need to know more about RNA
RNA: It is known as Ribonucleic acid.
 It is very essential in various biological coding, decoding, regulation & expression of genes.
It is a single stranded RNA; strand has a backbone made up of ribose and phosphate groups.
RNA is found in the cytoplasm of the living cell but is mainly synthesized in the nucleus of the cell.
RNA consists of four nitrogenous bases:
1) Adenine
2) Guanine
3) Cytosine
4) Uracil

Four type of non genetic RNA are:
1) mRNA: It is also known as Messenger RNA.
It encodes an amino acid sequence of polypeptides.
2) tRNA: It is also known as transfer RNA.
It brings amino acids to the ribosome during translocation.
3) rRNA: It is also known as ribosomal RNA.
It makes up the ribosome.

So, the correct option is option D All of above.

Note:
DNA: It is deoxyribonucleic acid.
- It is composed of two polynucleotide chains that coils together to form a double helical structure.
- It is present inside the nucleus of the living cell, but a small amount of DNA is found in mitochondria also.
- DNA helps in replication, encoding information, mutation and recombination and gene expression.
- It carries the genetic information for development, functioning, reproduction of the organism.