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#Question id: 12993


Out of these which of the following is true regarding the propensity of α-helix.
a. any amino acid which can take up desirable ϕ and ψ angle close to -57 and -47 will favour the formation of a α-helix
b. amino acid such a proline and glycine have lowest propensity will favour formation of α-helix.
c. if the resultant change in the value ΔΔG0 is positive then it will favour the formation of α-helix.
d. if the resultant change in the value ΔΔG0 is zero or close to zero then it will favour the formation of α-helix.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. a and b
  2. a and d
  3. c and d
  4. b and c
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#Question id: 32373

#Unit 2. Cellular Organization

Cytochalasin D,  a fungal alkaloid, depolymerizes actin filaments by:

TLS Online TPP Program

#Question id: 5288

#Unit 8. Inheritance Biology

Donor strain of bacteria with His+ Ara+ Met+ Leu+ Cys+ Lys+ is infected with phages to map the donor chromosome with generalized transduction .The Phage lysate from bacterial cell is collected and use to infect second strain of bacteria that are His- Ara- Met- Leu- Cys- Lys- . Different transducing phages are selected on using different minimal media and their presence of growth (+) and absence of growth (-) given in table

Media

Media supplement 0 absent /+ present

1

His

Ara

Met

Leu

Cys

Lys

Growth

2

+

+

0

+

+

0

+

3

0

+

+

+

+

0

+

4

+

+

0

+

0

+

-

5

0

+

+

0

+

+

+

6

+

0

+

0

+

+

+

7

+

0

+

+

0

+

+

Which of the following is correct order of gene?

TLS Online TPP Program

#Question id: 5131

#Unit 5. Developmental Biology

Differentiated cells express the genes and proteins characteristic of their final identity in the adult, and that identity can be altered only under special circumstances. How does the concept of differentiation, as described here, differ from the concept of determination?

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#Question id: 7482

#General Aptitude

A clock is started at noon. At 9 minutes pass 5, the hour hand has turned through:

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#Question id: 3328

#Unit 11. Evolution and Behavior

The fitness of a genotype is higher when it is rare in a population. Which of the following types of selection is most likely operating?