Practice Questions

TLS Online TPP Program

#Question id: 2117

Which of the following statements correctly describes osmosis?

#Unit 2. Cellular Organization

Osmosis only takes place in red blood cells.
Osmosis is an energy-demanding or "active" process.
In osmosis, water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration.
In osmosis, solutes move across a membrane from areas of lower water concentration to areas of higher water concentration.

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TLS Online TPP Program

#Question id: 5350

#Unit 8. Inheritance Biology

Which of the following most probable mode of genetic disorder?

TLS Online TPP Program

#Question id: 11689

#Unit 7. System Physiology – Animal

When do progesterone levels rise to their highest point during the female hormonal cycle?

TLS Online TPP Program

#Question id: 12910

#Unit 13. Methods in Biology

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: 29072

#Unit 10. Ecological Principles

There are some following figures depicts the age structure of three populations;

Assuming these age-structure diagrams describe human populations, which population is likely to experience negative growth rate?

TLS Online TPP Program

#Question id: 31368

#Unit 5. Developmental Biology

In which condition a stem cell stabilize the stem cell pool as well as generate a daughter cell that goes on to differentiate?