TLS Online TPP Program

#Question id: 2115


Which of the following statements about diffusion is true?

#Unit 2. Cellular Organization
  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: 10929

#Unit 7. System Physiology – Animal

Which of the following would describe the condition in a patient with aplastic anemia?


Which of the following is correct?

TLS Online TPP Program

#Question id: 23141

#Unit 13. Methods in Biology

Resolution of a light microscope is 0.42nm at 300 wavelength of light. If the specimen is viewed under oil what is the refractive index?

TLS Online TPP Program

#Question id: 9615

#Unit 9. Diversity of Life Forms

In angiosperm plants, flower morphology can be very intricate. If a tree, such as a New Mexico locust, has flowers that share many morphological intricacies with flowers of the sweet pea vine, then the most likely explanation for these floral similarities is the same general explanation for the similarities between the

TLS Online TPP Program

#Question id: 5580

#Unit 5. Developmental Biology

The innermost layer of the root cortex is the

TLS Online TPP Program

#Question id: 7251

#Unit 5. Developmental Biology

Following statements are regarding to the three “toggle switches” activated along the anterior-posterior axis to establish gap gene domains in drosophila.

A. The mutual inhibition of Knirps and Hunchback positions the Knirps protein domain at around 60–80% along the anterior-posterior axis.

B. Hunchback inhibits Krüppel expression at high concentrations but promotes it at intermediate concentrations.

C. Hunchback inhibits Krüppel expression at intermediate concentrations but promotes it at high concentrations.

D. Krüppel and Giant mutually inhibit each other’s synthesis.

E. Kruppel inhibits Giant expression at high concentrations but promotes it at intermediate concentrations.

Which of the following statements are correct?