The SH3 domains in GRB2 selectively bind to 

proline-rich sequences in Sos

TLS Online TPP Program

#Id: 9407

#XL - T Zoology

Foraging Behavior - The Search for Food

Optimizing its foraging behavior

1. When the difference between the energetic benefits of food consumption  and the energetic costs of food gathering is maximized.

2. Animals with optimal foraging strategies will have more available energy with which to survive and reproduce.

TLS Online TPP Program

#Id: 9274

#XL - S Microbiology

Bacterial Nod genes are activated to initiate nodulation in plants by plant signals flavonoids

TLS Online TPP Program

#Id: 7891

#XL - Q Biochemistry

TLS Online TPP Program

#Id: 7751

#XL - Q Biochemistry

Ranks the following in increasing atomic radius

S, Mg, Al

S: 16-10 +6

Mg: 12-10 = +2

Al: 13-10 +3

So: S < AlMg

TLS Online TPP Program

#Id: 8043

#XL - Q Biochemistry

RS Configuration 

Atoms of higher atomic number rank above those of lower atomic number (e.g., —OH ranks above —CH3). If the first substituent atoms are identical, the priority is established by the next atom outward from the chiral center (e.g., —CH2OH takes precedence over —CH3).