Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 783
TLS Online TPP Program

#Question id: 801

Identify the type of DNA from the structures given below and match the correct form with its characteristics described.

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. (ii) – The more compact A form of DNA has 11 bp per turn and shows a large tilt of the base pairs with respect to the helix axis.

  2. (i) – The B form, which is observed at high humidity, most closely corresponds to the average structure of DNA under physiological conditions.

  3. (iii) – Z DNA is a left-handed helix and has a zigzag (hence “Z”) appearance and has an anti-conformation of glycosyl bond.

  4. (i) – The A form which is observed under low humidity has a structure similar to the structure that RNA adopts when double-helical.

More Questions
TLS Online TPP Program

#Question id: 10681

#Unit 10. Ecological Principles

Which of the following is not condition for commensalism?
TLS Online TPP Program

#Question id: 10682

#Unit 10. Ecological Principles

if 30 individuals of species 2 take up the same amount of resources as 5 individual of species 1 then the per capita competitive effects on species 1 of species 2 is
TLS Online TPP Program

#Question id: 10683

#Unit 10. Ecological Principles

Which of the following interaction shown in figure
TLS Online TPP Program

#Question id: 10684

#Unit 10. Ecological Principles

Which one of the following statements is INCORRECT?
TLS Online TPP Program

#Question id: 10685

#Unit 10. Ecological Principles

figure show population growth in two species A ana B . Interaction between


 
TLS Online TPP Program

#Question id: 10686

#Unit 10. Ecological Principles

 Following figure are shown figure of predator prey model 


Following some observation are given

A) The number of prey, N, increase at low predator densities, P, and decrease at high predator densities

B) Prey zero isoclines is depends on the ratio of the growth rate of prey to the capture efficiency of the predators

C) Number of predator needed for prey isoclines is depends on the ratio of the death rate of predators to the conversion efficiency of predators

D) Number of predator for prey isoclines depends on the ratio of the death rate of prey to the conversion efficiency of predators

Which of the above observation are true?