मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Silencing of a gene could be achieved through the use of ______. - Biology

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प्रश्न

Silencing of a gene could be achieved through the use of ______.

पर्याय

  • RNAi only

  • antisense RNA only

  • both RNAi and antisense RNA

  • none of the above

MCQ
रिकाम्या जागा भरा
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उत्तर

Silencing of a gene could be achieved through the use of both RNAi and antisense RNA.

Explanation:

Gene silencing can be achieved through RNA interference (RNAi) as well as antisense RNA. RNAi works by introducing double-stranded RNA that matches the target genes mRNA, leading to degradation of the mRNA and inhibition of translation. Similarly, antisense RNA binds to complementary mRNA sequences to block their translation. Thus, both mechanisms can be used effectively for gene silencing.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 12: Biotechnology and Its Applications - MULTIPLE CHOICE QUESTIONS [पृष्ठ ८४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Biology [English] Class 12
पाठ 12 Biotechnology and Its Applications
MULTIPLE CHOICE QUESTIONS | Q 15. | पृष्ठ ८४
नूतन Biology [English] Class 12 ISC
पाठ 14 Biotechnology and Its Applications
Test Your Progress | Q 1. 21. | पृष्ठ ५५२
नूतन Biology [English] Class 12 ISC
पाठ 13 Principles and Processes of Biotechnology
Test Your Progress | Q 1. 39. | पृष्ठ ५३१

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Silencing of a gene could be achieved through tee use ______.


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RNA interference (RNAi) holds great potential as a therapeutic agent for the treatment of human diseases and as biocontrol agents in controlling pests in the field agriculture. An experiment was carried to study the use of 'RNAi' for the potential treatment of disorders of cholesterol metabolism. Some people possess genetic mutations with elevated levels of ApoB gene which predisposes them to coronary artery diseases.

Lowering the amount ApoB can reduce the number of lipoproteins and lower the blood cholesterol.

Tracy Zimmerman and her colleagues used RNAi in 2006 to reduce the level of ApoB in non human primates Cynomolgus monkeys.

One group of monkeys were given RNAi treatment (small interfering RNAs, SiRNAs) (doses 1 mg/kg, SiRNAs), second group of monkeys were given RNAi treatment (doses 2.5 mg/kg, SiRNAs) and third group of monkeys were injected with saline.

The results of the study are depicted in the graph below:

  1. How does the treatment with 2.5 mg/kg bring an effect on cholesterol metabolism when compared from 24 hours and 144 hours?
  2. Write any two natural sources from where dsRNA molecule could be obtained for silencing the specific mRNA.
  3. How is RNAi used in controlling the infection on the roots of tobacco plants by the nematode Meloidogyne incognitia?

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