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TLS Online TPP Program

#Question id: 1056

During penetration of E. coli by the T4 phage

#Unit 4. Cell Communication and Cell Signaling

  1. lysozyme is used to allow entry of the phage capsid.

  2. the tail acts as a "hypodermic needle," injecting the phage DNA into the cell.

  3. the protein fibers digest a hole in the cell wall.

  4. the bacterial receptor molecules open a hole through the cell wall.

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TLS Online TPP Program

#Question id: 28035

#Unit 1. Molecules and their Interaction Relevant to Biology

Intrinsically disordered proteins  
a. Have hydrophobic core
b. High densities of charged amino acid residues 
c. Pro residues are also prominent
d. Generally promiscus in nature
e. lack a hydrophobic core

Which of the following is correct 
TLS Online TPP Program

#Question id: 28036

#Unit 1. Molecules and their Interaction Relevant to Biology

The protein p27 is
a. a highly ordered protein
b. a intrinsically disordered protein
c. p27 inhibits cyclin-dependent kinases (CDKs)  
d. p27 promotes cyclin-dependent kinases (CDKs

Which of the following is correct
TLS Online TPP Program

#Question id: 28037

#Unit 1. Molecules and their Interaction Relevant to Biology

Intrinsically disordered proteins have properties that are distinct from classical structured proteins, so which of the following's statements are true regarding Intrinsically disordered proteins 
(1) Intrinsically disordered proteins  lacks hydrophobic core
(2) Intrinsically disordered proteins have a hydrophobic core
(3) Intrinsically disordered proteins have high densities of charged amino acid residues such as Lys, Arg, and Glu
(4) Functional promiscuity is the characteristics of  Intrinsically disordered proteins are.
TLS Online TPP Program

#Question id: 28038

#Unit 1. Molecules and their Interaction Relevant to Biology

PONDR (Predictor of Natural Disordered Regions) A score of 1.0 indicates a probability of 
TLS Online TPP Program

#Question id: 28039

#Unit 1. Molecules and their Interaction Relevant to Biology

Proteins particularly those with molecular masses >100 kD, consist of more than one polypeptide chain. These polypeptide subunits associate with a specific geometry. The spatial arrangement of these subunits is known as 
TLS Online TPP Program

#Question id: 28040

#Unit 1. Molecules and their Interaction Relevant to Biology

Cyclic symmetries, Dihedral symmetries, Tetrahedral symmetry, Octahedral (cubic) symmetry, Icosahedral symmetry these symmetry arises as a result of