TLS Online TPP Program

#Question id: 11220


The botulinum toxin, which causes botulism, reduces the synaptic release of ________.

#Unit 7. System Physiology – Animal
  1. acetylcholine
  2. endorphin
  3. nitric oxide
  4. gamma-aminobutyric acid (GABA)
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TLS Online TPP Program

#Question id: 26464

#Unit 3. Fundamental Processes

Choose the correct statement During abortive Transcription 
a. Abortive synthesis takes before escaping the promoter (-10 to +2), entering the elongation phase 
b. Abortive synthesis produces and releases short RNA transcripts of 10 nucleotides 
c. The major phenomenon which is responsible is Brownian ratchet 
d. Three general models were associated is “Scrunching”

TLS Online TPP Program

#Question id: 16493

#Unit 3. Fundamental Processes

35S promoter sequences derived from cauliflower mosaic virus shows which type of expression.

TLS Online TPP Program

#Question id: 24498

#Unit 3. Fundamental Processes

SR proteins are involved in exon definition in which they interact with U1 and U2AF forming the commitment for

TLS Online TPP Program

#Question id: 24491

#Unit 3. Fundamental Processes

There are three type of Splicing signals 1. Major U2-type or GU-AG introns 2. Minor U12-type or AU-AC introns & 3. Minor U12-type with GU-AG introns (hybrid type), which of the following is responsible for the recognition of branch point sequence CCUUAACU

TLS Online TPP Program

#Question id: 24490

#Unit 3. Fundamental Processes

There are three type of Splicing signals 1. Major U2-type or GU-AG introns 2. Minor U12-type or AU-AC introns & 3. Minor U12-type with GU-AG introns (hybrid type), which of the following is responsible for the recognition of branch point sequence UACUAAC?

TLS Online TPP Program

#Question id: 24489

#Unit 3. Fundamental Processes

Two transesterification reactions takes place for 2 exon -1 intron configuration. Choose the correct  statement 
a. First transesterification is always caused by exon 1 -3’OH
b. second transesterification is catalysed variably either by external G or branch point while .
c. First transesterification is catalysed variably either by external G or branch point while 
d. second transesterification is always caused by exon 1 -3’OH.