TLS Online TPP Program

#Question id: 5722


Meiotic products resulting from a single crossover within a pericentric inversion loop

A. This will generate a dicentric and an acentric chromosome following separation of chromosomes after crossing over

B. the inversion will completely suppress crossing over

C. All parental gametes that carry inversion chromosome are nonviable

D. All gametes from crossover products are non viable due to appearance of duplication of one arm and deletion of another arm

Which of the above statements are correct?

#Unit 8. Inheritance Biology
  1. A and B   

  2. B and D       

  3. C and D                  

  4. D only

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TLS Online TPP Program

#Question id: 27628

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the incorrect statement of the following

TLS Online TPP Program

#Question id: 27629

#Unit 1. Molecules and their Interaction Relevant to Biology

Length of alpha helix can be calculated  by using

TLS Online TPP Program

#Question id: 27630

#Unit 1. Molecules and their Interaction Relevant to Biology

α helices are common components of polypeptide chains, they need to be of a certain minimum length of then which of the following graph is correctly representing that certain minimum length condition

TLS Online TPP Program

#Question id: 27631

#Unit 1. Molecules and their Interaction Relevant to Biology

Interactions between amino acid residues at the ends of the helical segment and the electric dipole inherent to the  helix so which of the following representing the actual dipole moment along the peptide bond atoms C=O– N-H

TLS Online TPP Program

#Question id: 27632

#Unit 1. Molecules and their Interaction Relevant to Biology

The two forms of poly(Pro) helix all cis (I) or all trans (II) peptide bonds with different no of amino acid per turn

(a) poly(Pro) I as a right-handed helix with 3.3 residues per turn 

(b) poly(Pro) I as a right-handed helix with 3 residues per turn 

(c) poly(Pro) II is a left-handed helix with 3 residues per turn.

(d) poly(Pro) II is a left-handed helix with 3.3 residues per turn.

Choose the correct options of the following

TLS Online TPP Program

#Question id: 27633

#Unit 1. Molecules and their Interaction Relevant to Biology

Amino acid and condtion/propensity of forming helix is given
(a) Polyleucine and polyalanine readily do not form a-helical structures.
(b) Polyleucine and polyalanine readily form a-helical structures.
(c) Below pH 12, polylysine chain, readily forms an a-helix
(d) At pH 12, polylysine chain, readily forms an a-helix
(e) Below pH 5olyGlu readily do not forms an a-helix.
(f) Below pH 5olyGlu readily forms an a-helix.
Choose the correct options of the following