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TLS Online TPP Program

#Question id: 15536

Which of the following is incorrect regarding the progressive alignment method?

#SCPH05 I Biotechnology
  1. It speeds up the alignment of multiple sequences through a multistep process.
  2. It first conducts pair wise alignments for each possible pair of sequences using the Needleman–Wunsch global alignment method and records these similarity scores from the pair wise comparisons
  3. The scores can either be percent identity or similarity scores based on a particular substitution matrix.
  4. Its drawback is it slows down the alignment of multiple sequences through a single step process.
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TLS Online TPP Program

#Question id: 10954

#SCPH28 | Zoology

A patient suffers from a congenital deficiency in factor XIII (fibrin-stabilizing factor). What would analysis of his blood reveal?
TLS Online TPP Program

#Question id: 2938

#SCPH28 | Zoology

Which of the following inhibit(s) cyclin A/Cdk2 activity?
TLS Online TPP Program

#Question id: 13082

#SCPH28 | Zoology

Statement: AFLP shares some features of both RFLP and RAPD analyses.
Explanations: I. It uses restriction enzyme-digested genomic DNA as template for PCR amplification using primers that contain the restriction enzyme recognition sites plus a number of, usually 2-3, arbitrary nucleotides.
II. AFLPs are faster, less labour intensive and provide more information than RFLPs, and they are highly reproducible, which is a great advantage over RAPDs.
TLS Online TPP Program

#Question id: 5311

#SCPH28 | Zoology

Which of the following conclusions has led to the comparison between the number of human genes and those of other animal species?
TLS Online TPP Program

#Question id: 7290

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

Following figure regarding to regulatory network in the Arabidopsis shoot meristem stem-cell niche.

A. The transcription factor WUS is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the CLV3.

B. The transcription factor CLV3 is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the WUS.

C. Secreted CLV3 protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses WUS transcription.

D. Secreted WUS protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses CLV3 transcription.

Which of the following combination is correct?