NEET Zoology Biotechnology Principles and Processes Questions Solved

BOARD

(a) State the role of DNA ligase in biotechnology.

(b) What happens when Meloidegyne incognitia consumes cells with RNAi gene?                (2)                   

(a) Role of DNA ligase: Joining of DNA fragments end to end, having same kinds of sticky ends. 

(b) When Meloidegyne incognitia consumes cells with RNAi gene, silencing of specific mRNA occurs due to a complementary dsRNA molecule formation that binds to prevent translation of mRNA. It causes death to the nematode.                                                                                          (2)

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