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प्रश्न
What is RNA interference? Give any one application of RNA interference.
उत्तर
RNA interference :
It is a method of cellular defence which takes place in all eukaryotic organisms. It involves the silencing of a specific w-RNA due to the complementary <A-RNA molecule that binds to and prevents translation of w-RNA (silencing).
Application of RNA interference:
Several nematodes parasitise a wide variety of plants and animals. For example, a nematode Meloidegyne incognitia infects the roots of tobacco plants and reduces the yield. RNA interference prevents this infestation.
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संबंधित प्रश्न
Draw a schematic diagram of a part of double stranded dinucleotide DNA chain having all the four nitrogenous bases and showing the correct polarity.
A DNA segment has a total of 1000 nucleotides, out of which 240 of them are adenine containing nucleotides. How many pyrimidine bases this DNA segment possesses?
A DNA segment has a total of 1,500 nucleotides, out of which 410 are Guanine containing nucleotides. How many pyrimidine bases this segment possesses ?
A DNA segment has a total of 2,000 nucleotides, out of which 520 are adenine containing nucleotides. How many purine bases this DNA segment possesses ?
Nucleoside is a nucleotide without________.
(A) Sugar
(B) Nitrogen base
(C) Hydrogen bond
(D) Phosphate group
Length of DNA with 23 base pairs is :
(1) 78.4 Å
(2) 78.2 Å
(3) 78 Å
(4) 74.8 Å
Give the scientific term for the following:
The smallest unit of DNA can mutate.
Expand the following abbreviation :
rDT
Draw a well-labelled diagram of tRNA.
Draw a well-labelled diagram of nucleosome.
