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TLS Online TPP Program

#Question id: 2115

Which of the following statements about diffusion is true?

#SCPH28 | Zoology

  1. It is very rapid over long distances.

  2. It requires an expenditure of energy by the cell.

  3. It is an active process in which molecules move from a region of lower concentration to a region of higher concentration.

  4. It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.

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TLS Online TPP Program

#Question id: 15920

#SCPH05 I Biotechnology

_____________is the advantage of animal tissue culture 
TLS Online TPP Program

#Question id: 12910

#SCPH28 | Zoology

Match the following:
A. RNA analysis               i. Sexing or cell mutation sites               a. Expressed Sequence tag
B. Forensic science           ii. mRNA analysis                                     b.  Analysis of DNA from blood
C. Gene discovery              iii. DNA profiling                                       c. Active latent viral infections
D. Single-cell analysis     iv.  RT–PCR                                             d. Sex determination of unborn
TLS Online TPP Program

#Question id: 9180

#SCPH06 I Botany

Which of the following statements can be accurately made about light in aquatic environments?
TLS Online TPP Program

#Question id: 11548

#SCPH28 | Zoology

If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?
TLS Online TPP Program

#Question id: 4959

#SCPH28 | Zoology

If a fossil is encased in a stratum of sedimentary rock without any strata of igneous rock (e.g., lava, volcanic ash) nearby, then it should be