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TLS Online TPP Program

#Question id: 7278

The following demonstrates the blastocoel formation in the mammals. Which of the following statement is correct?

#Unit 5. Developmental Biology
  1. The membranes of inner cell mass contain sodium pumps that pump Na+ into the central cavity. The subsequent accumulation of Na+ draws in water osmotically, creating and enlarging the blastocoel.
  2. The membranes of trophoblast cells contain sodium pumps  that pump Na+ into the central cavity. The subsequent accumulation of Na+ draws in water osmotically, creating and enlarging the blastocoel.
  3. The membranes of inner cell mass contain potassium pumps that pump K+ into the central cavity. The subsequent accumulation of K+ draws in water osmotically, creating and enlarging the blastocoel.

  4. The membranes of trophoblast cells contain potassium pumps that pump K+ into the central cavity. The subsequent accumulation of K+ draws in water osmotically, creating and enlarging the blastocoel.

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TLS Online TPP Program

#Question id: 14727

#Unit 13. Methods in Biology

Two persons A and B have respectively n + 1 and n coins, which they toss simultaneously. Then the probability that A will have more heads than B is
TLS Online TPP Program

#Question id: 14728

#Unit 13. Methods in Biology

A student appears for tests I, II and III. The student is successful if he passes either in tests I and II or tests I and III. The probabilities of the student passing in tests I, II and III are p, q and 1/2 respectively. If the probability that the student is successful is 1/2. Then
TLS Online TPP Program

#Question id: 14729

#Unit 13. Methods in Biology

The figure below shows the network connecting cities A, B, C, D, E and F. The arrows indicate permissible directions of travel. If Deepak from city A wants to visit city F, what is the probability he will pass through city C
TLS Online TPP Program

#Question id: 14730

#Unit 13. Methods in Biology

Mean of 200 observations was found to be 90. However, when the observations were being made, two observations were wrongly taken as 15 and 80 instead of 40 and 87. Then the correct mean is
TLS Online TPP Program

#Question id: 14731

#Unit 6. System Physiology – Plant

Crop Yields can be Improved by addition of fertilizers, Most chemical fertilizers contain inorganic salts of the macronutrients nitrogen, phosphorus, and potassium, Fertilizers that contain only one of these three nutrients are termed
TLS Online TPP Program

#Question id: 14732

#Unit 6. System Physiology – Plant

Some mineral nutrients such as iron, manganese, and copper can be applied to the leaves as sprays, in a process known as foliar application. What happen If Addition of lime to the spray;