A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample

#Question id: 715

#Unit 1. Structure and Function of Biomolecules

A protein is made up of 200 amino acids with alpha helix region containing 100 amino acid residues and 80 amino acids making antiparallel beta sheet and rest 20 amino acids in extended form. What will be the total length of this protein?

#Question id: 716

#Unit 1. Structure and Function of Biomolecules

In beta turns which amino acid is not allowed at i and i+3 position?

#Question id: 717

#Unit 1. Structure and Function of Biomolecules

What is Φ & Ψ angles for collagen triple helix?

#Question id: 718

#Unit 1. Structure and Function of Biomolecules

Poly- L -leucine in an organic solvent such as dioxane is a helical, whereas poly- L isoleucine is not. Why do these amino acids with the same number and kinds of atoms have different helix-forming tendencies?

#Question id: 719

#Unit 1. Structure and Function of Biomolecules

Suppose that a 40-residue segment of a protein folds into a two-stranded antiparallel β structure with a 4-residue hairpin turn. What is the longest dimension of this motif?

#Question id: 720

#Unit 1. Structure and Function of Biomolecules

How would a homopolymer of alanine be more likely to form an alpha helix in water or in a hydrophobic medium?