TLS Online TPP Program

#Question id: 809


A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which of the following double-stranded DNA molecules would denature at a lower temperature than the 40 base-pair double-stranded molecule described above?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. a 40 base-pair molecule in which 25% of the bases are adenines

  2. a 30 base-pair molecule in which 40% of the bases are guanines

  3. a 20 base-pair molecule in which 10% of the bases are thymines

  4. a 10 base-pair molecule in which 20 % of the bases are cytosines

More Questions
TLS Online TPP Program

#Question id: 26498

#Unit 3. Fundamental Processes

Which of the following shows correct bond pattern in Lactose and Allolactose

TLS Online TPP Program

#Question id: 26497

#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: 26496

#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.

TLS Online TPP Program

#Question id: 26495

#Unit 3. Fundamental Processes

Which of the following is (are) required for splicing to occur?
a. two transesterification reactions
b. intact, naturally occurring introns
c. formation of a lariat like structure 
d. a branch-point G residue

TLS Online TPP Program

#Question id: 26494

#Unit 3. Fundamental Processes

Class and abundance is given Match them correctly

TLS Online TPP Program

#Question id: 26490

#Unit 3. Fundamental Processes

Choose which of the following factors are involved in the Regeneration of CTD tail