Ans.
Lac (lactose) operon in a type of bacterial operon, which shows a cluster of genes that are regulated by a single promoter. It is composed of an operator, promoter, a terminator, and three structural genes (lacA, lacY, and lacZ), which are responsible for the transport and breakdown of lactose.
The lac operon is an inducible operon as it gets activated in the presence of lactose and expressed its functional genes in the form of proteins (or enzymes) for lactose metabolism.
Thus, the correct answer to be fill in first blank is 'inducible' and in second blank is 'lactose.'
Answer:
Benedict's solution is the indicator for sugar which is made up from copper sulfate and sodium hydroxide
the positive result is the observation of brick-red precipitate.
The best and the correct answer among the choices provided by the question is the second choice.
Temporal isolation could be the mechanism that <span>might keep Rana aurora and Rana boylii from mating.</span>
I hope my answer has come to your help. Have a nice day ahead and may God bless you always!
Answer:
An ecosystem is made up of all the living animals and plants and the non-living matter in a particular place, like a forest or lake. The idea of the web of life is shown by the interdependence within an ecosystem. ... Animals and plants depend on a complex system of food for survival.
