Practice Questions

TLS Online TPP Program

#Question id: 4658

Members of two different species possess a similar-looking structure that they use in a similar fashion to perform the same function. Which information would best help distinguish between an explanation based on homology versus one based on convergent evolution?

#Unit 11. Evolution and Behavior

The two species live at great distance from each other.
The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical.
The sizes of the structures in adult members of both species are similar in size.
Both species are well adapted to their particular environments.

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TLS Online TPP Program

#Question id: 27424

#Unit 1. Molecules and their Interaction Relevant to Biology

Conversion of antigen are possible with the help of enzyme then O

B antigen these conversion are catalysed by enzyme a and b which are

TLS Online TPP Program

#Question id: 27423

#Unit 1. Molecules and their Interaction Relevant to Biology

Cholesterol Poor region are maintained in the

TLS Online TPP Program

#Question id: 27422

#Unit 1. Molecules and their Interaction Relevant to Biology

There are two extreme states of bilayer lipids choose which of the following is correct

1.In the liquid- ordered (Lo) state, polar head groups are non uniformly arrayed at the surface, and the acyl chains are nearly motionless and packed with irregular

2.in the liquid- ordered (Lo) state, polar head groups are uniformly arrayed at the surface, and the acyl chains are nearly motionless and packed with regular

3.In the liquid-disordered (Ld) state acyl chains undergo much thermal motion and have regular organization.

4.In the liquid-disordered (Ld) state, acyl chains undergo much thermal motion and have no regular organization.

TLS Online TPP Program

#Question id: 27421

#Unit 1. Molecules and their Interaction Relevant to Biology

Highest concentration of cholesterol are found in

TLS Online TPP Program

#Question id: 27420

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following membrane do not have cholesterol

1.Plasma membrane (E. coli)

2.Outer mitochondrial membrane (cauliflower)

3.Inner mitochondrial membrane (cauliflower)

4.Chloroplast inner membrane

TLS Online TPP Program

#Question id: 27416

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statement is true

1. Wedge or cone shape lipid promote the formation of monolayer micelle

2. Wedge or cone shape lipid promote the formation of lipid bilayer

3. Cylindrical shaped lipid majorly promote the formation of perfect lipid bilayer region

4. Cylindrical shaped lipid majorly promote the formation of monolayer micelle