Because enzymes connect to their substrate through a lock-and-key system, where the shape of the substrate and the enzyme has to fit like puzzle pieces. Then only the enzymatic reaction can occur.
The correct answer would be the first option. The basal ganglia integrates information over many trials. It is the one responsible for the voluntary motor control, eye movement, emotional and cognitive functions and procedural learning. It is found at the base of the forebrain.
Answer:
As auxotrophs are mutants organism which requires particular additional nutrients which normal strains can not,
Hfr A high-frequency recombination cell (Hfr cell) (also called an Hfr strain) is a bacterium with a conjugative plasmid (for example, the F-factor) integrated into its chromosomal DNA
F+have fertity factor and are considered to be inheritable( male) while female have non and do not make pill for conjugation
**The qn is incomplete
