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TLS Online TPP Program

#Question id: 2031

Antigen binding sites of an immunoglobulin are located in

#Unit 4. Cell Communication and Cell Signaling

  1. light chain alone

  2. heavy chain alone

  3. Fc region of the antibody

  4. Fab regions of the antibody

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TLS Online TPP Program

#Question id: 19330

#Unit 12. Applied Biology

Which one of the following can be used to measure the environmental and water quality?
TLS Online TPP Program

#Question id: 4206

#Unit 3. Fundamental Processes

Ribosomal protein synthesis is controlled by inhibitor proteins, the genes of which are located on the ribosomal protein operon, and which bind to __ when ribosome assembly slows and bind to __ when ribosome assembly is proceeding at a steady rate.
TLS Online TPP Program

#Question id: 19118

#Unit 8. Inheritance Biology

You are conducting genetic linkage studies of an autosomal recessive disease whose chromosomal location has not been firmly established. You are focused on two SSR markers that may be linked to each other and to the disease. Here are two families in which some individuals are affected:
                               
Calculate LOD scores for linkage at θ= 0.02 between SSR42 and SSR43 in Family 1.
TLS Online TPP Program

#Question id: 7057

#Unit 5. Developmental Biology

Movement of mesodermal precursor regulated by the factor which is expressed in the primitive streak and repels migrating cells away from the streak. The factor is:
TLS Online TPP Program

#Question id: 4466

#Unit 3. Fundamental Processes

As well as synthesizing the transcript, RNA polymerase performs two proofreading functions on that growing transcript;

i. Pyrophosphorolytic editing

ii. Hydrolytic editing

Choose correct processes accordingly,

A. The polymerase backtracks by one or more nucleotides and cleaves the RNA product, removing the error-containing sequence.

B. In this, the enzyme uses its active site, in a simple back-reaction,

C. Catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of PPi

D. The enzyme can then incorporate another ribonucleotide in its place in the growing RNA chain.