TLS Online TPP Program

#Question id: 4362


How are bacteria able to change their patterns of protein synthesis so quickly in response to environmental changes?

#Unit 3. Fundamental Processes
  1. mRNAs that are produced are short-lived and degraded within a few minutes of being synthesized.

  2. mRNA have long lifespans, allowing the bacteria to use them many times for translation.

  3. mRNA is stored for later use.

  4. Operons are activated in the presence of transcription factors.

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TLS Online TPP Program

#Question id: 14992

#Unit 4. Cell Communication and Cell Signaling

Given cell types contains granules, which perform different function such as;

CELL TYPEMOLECULES IN GRANULEFUNCTIONS
A) Neutrophili) Chemokinesa) Antiviral activity
B) Eosinophilii) Lipid mediatorsb) Vasodilation
C) Basophiliii) Antimicrobial proteinsc) Modulation of adaptive immune response
D) Mast celliv) Histamined) Regulation of inflammation
v) Cytokinese) Direct harm to pathogens
vi) Ribonucleases
Match the given following  cells with their correct functions of granules?

TLS Online TPP Program

#Question id: 14993

#Unit 4. Cell Communication and Cell Signaling

CD-56 marker found on ?

TLS Online TPP Program

#Question id: 14994

#Unit 4. Cell Communication and Cell Signaling

The absence of MHC class I, which is expressed by almost all normal cells, but is specifically down-regulated by some tumors and in response to some viral infections, it will undergo apoptosis by

TLS Online TPP Program

#Question id: 14995

#Unit 4. Cell Communication and Cell Signaling

NKT Cells, which share features with both conventional T lymphocytes and NK cells,
Statement-I) Like T-cells, NKT Cells have T-cell receptors (TCRs), and some express CD4.
Statement-II) Like NK cells, NKT Cells have antibody receptors  
Statements-III) they are APCs
Given above statements, which is sharing correct features of NKT cells?

TLS Online TPP Program

#Question id: 14996

#Unit 8. Inheritance Biology

Which of the following most accurately restates Mendel's law of segregation?

TLS Online TPP Program

#Question id: 14997

#Unit 8. Inheritance Biology

You capture several interesting insects from a population in your yard. By inbreeding, you develop true breeding strains that differ only in the shape of their wings - one strain has round wings while the other strain has oval wings. How might you demonstrate that Mendel's principles apply to your insects?