Practice Questions

TLS Online TPP Program

#Question id: 808

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

#SCPH05 I Biotechnology

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.
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.
By destroying RNAs that are related to a specifically introduced genetic construct, artificial RNAi is effectively a type of gene-specific silencing.
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: 1552

#SCPH06 I Botany

A common clinical pathological finding during a viral infection is

TLS Online TPP Program

#Question id: 5554

#I Life Science/ Life Sciences Group – I-V

Even in the absence of sperm, metabolic activity in an egg can be artificially activated by ________.

TLS Online TPP Program

#Question id: 14127

#SCPH01 Biochemistry

The most basic sequence alignment method is –

TLS Online TPP Program

#Question id: 20998

#SCPH06 I Botany

C-phenol present in Activated sludge are usually biodegraded by which microorganism?

TLS Online TPP Program

#Question id: 15148

#SCPH12 I Genetics

You have isolated a set of five yeast mutants that form dark red colonies instead of the usual white colonies of wild-type yeast. You cross each of the mutants to a wild-type haploid strain and obtain the results shown below;

you cross each haploid mutant strain to a different haploid mutant of the opposite mating type. What type of mutation shown in the above figure;