Silencing a specific mRNA in order to pr...

Silencing a specific mRNA in order to prevent its translation is known to be a cell defense mechanism . What is the name of this process useful in making transgenic organisms ?

Gene gun technology

Elution

RNA interference

Gene deletion

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NTA NEET SET 43
NTA MOCK TESTS|Exercise BIOLOGY|90 Videos
NTA NEET SET 45
NTA MOCK TESTS|Exercise BIOLOGY|90 Videos

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Assertion: RNAi involves silencing of a specific mRNA due to complementary RNA that bind to & prevents translation of the mRNA Reason :RNAi takes place in all prokaryotic organisms as a method of cellular defense

Which of the following statements are correct regarding the process of RNA interference ? (i) RNAi has been used to prevent nematode infestation of tobacco plants . (ii) RNAi takes place in all eukaryotic organisms as a method of cellular defense. (iii) The method involves silencing of specific mRNA using a complementary dsDNA molecule that binds and prevents the translation of mRNA. (iv) using retrovirus vectors , nematode–specific genes were introduced into the host plant .

Which of the following statements are correct regarding the process of RNA interference ? (i) This is used to prevent the infestation of protozoans (ii) It takes place in some eukaryotic and all prokaryotic organism as a method of cellular defense (iii) The method involves silencing of a specific mRNA due to a complementary dsRNA molecule (v)It is a novel strategy to produce pest-resistant plants.

The organism A, B and C can obtain their food in three different ways. Organsim A derives its food from the body of another living organism which is called its, D without killing it. The organism B takes in the solid food by the process of ingestion, digests a part of this food and throws out undigested food in the process called E. The organism C obtains its food from dead and decaying plants. (a) What is the mode of nutrition of (i) organism A (ii) organism B, and (iii) organism C ? (b) What is the organism like D called ? (c) Name the process E. (d) Give one example each of organisms like (i) A (ii) B, and (iii) C. (e) What is the general name of three modes of nutrition exhibited by organisms A, B and C ?

Name the single-celled organism which is used to make wine and beer by the process of anaerobic respiration.

NTA MOCK TESTS-NTA NEET SET 44-BIOLOGY

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