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TLS Online TPP Program

#Question id: 808

Which, if any, of the following statements is false?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. RNA interference (RNAi) is a cellular defense mechanism that is triggered by the presence in cells of unnatural double-stranded RNA, as can occur after viral infections.

  2. RNAi therapy is a type of RNA-targeted therapy in which specific double-stranded RNA constructs are engineered to appear in diseased cells in order to incite the cells to destroy any RNA that contains the same sequence.

  3. By destroying RNAs that are related to a specifically introduced genetic construct, artificial RNAi is effectively a type of gene-specific silencing.

  4. RNAi therapy is best suited to silencing genes so as to replicate a phenotype caused by loss-of-function mutations.

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TLS Online TPP Program

#Question id: 4693

#Unit 3. Fundamental Processes

The function of snoRNAs in guiding rRNA modification by two types of sequences or boxes

Statement-I   C/D box of snoRNAs to guide methylation reactions

Statement-II  H/ACA box of snoRNAs to guide dihydrouridylylations
TLS Online TPP Program

#Question id: 15710

#Unit 12. Applied Biology

A phenolic compound, is sometimes added to inhibit the enzyme IAA oxidase responsible for the breakdown of IAA.
TLS Online TPP Program

#Question id: 3661

#Unit 3. Fundamental Processes

______________ short fragment of DNA produced during replication of the lagging strand.
TLS Online TPP Program

#Question id: 15853

#Unit 5. Developmental Biology

In XY cells, the early promoter is not active and there is no early Sxl protein because-
TLS Online TPP Program

#Question id: 7025

#Unit 5. Developmental Biology

Many reptile groups initiate gastrulation by migration through an amphibian- like blastopore, avian and mammalian gastrulation takes place through the: