Practice Questions

TLS Online TPP Program

#Question id: 12585

Agricultural lands frequently require nutritional supplementation because

#Unit 10. Ecological Principles

Nitrogen-fixing bacteria and detrivores do not cycle nutrients as effectively as they do on wild lands.
The nutrients that enter the plants are not returned to the soil on lands where they are harvested.
The prairies that comprise good agricultural land tend to be nutrient-poor.
Grains raised for feed must be fortified, and thus require additional nutrients.

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TLS Online TPP Program

#Question id: 15779

#Unit 5. Developmental Biology

During stem cell regulation extracellular mechanisms leading to intracellular changes that regulate stem cell behaviour. Which of the following is not consider as extracellular mechanisms for stem cell regulation?

TLS Online TPP Program

#Question id: 16774

#Unit 13. Methods in Biology

Some of the samples are given below. Find the median. 90, 45, 67, 34, 26, 76, 44, 55.

TLS Online TPP Program

#Question id: 14504

#Unit 13. Methods in Biology

If the probability of a defective bolt is 0.1, the mean and standard deviation for the distribution of defective bolts in a total of 500 are

TLS Online TPP Program

#Question id: 2738

#Unit 2. Cellular Organization

Which of the following function is not served by DNA packaging?

TLS Online TPP Program

#Question id: 28311

#Unit 5. Developmental Biology

zona pellucida is made of glycoproteins, Which of the following zona pellucida or ZP protein is differentiating between mouse and human?