Choose the incorrect statement 

A. Lariat formation is characterized by 2’-5’ phosphodiester bond

B. Lariat formation is characterized by 3’-5’ phosphodiester bond

C. Group II mitochondrial introns are excised by the same mechanism as nuclear pre-mRNAs via a lariat that is held together by a 2’–5’ bond.

D. Group II mitochondrial introns are excised by the different  mechanism as nuclear pre-mRNAs via a lariat that is held together by a 2’–5’ bond.

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

TLS Online TPP Program

#Question id: 27634

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following set of amino acid can form beta sheet

TLS Online TPP Program

#Question id: 27635

#Unit 1. Molecules and their Interaction Relevant to Biology

The arrangement of successive amide planes has a pleated appearance due to the

TLS Online TPP Program

#Question id: 27636

#Unit 1. Molecules and their Interaction Relevant to Biology

Each single strand of the beta-sheet structure can be pictured as a twofold helix, that is, a helix with

TLS Online TPP Program

#Question id: 27637

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the given statements are regarding Parallel & Antiparallel sheets are given

(a) Parallel sheets composed of fewer than five strands are rare. 

(b) Parallel sheets composed of more than five strands are rare.

(c) Antiparallel sheets may consist of as few as two strands

(d) Antiparallel sheets maynot consist of as few as two strands.

Choose the correct options of the following

TLS Online TPP Program

#Question id: 27638

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the incorrect statement regarding Parallel beta sheets