Answer:
Hey there ,
i think your question is incomplete,I cannot see any graph here...
Lac genes are most effectively expressed in presence of Lactose and its analogs when glucose is absent.
Explanation:
A unit of prokaryotic gene expression and regulation,which includes structural genes and regulatory sequences recognized by regulatory gene product is called operon.
<em>Lac </em>structural genes are a part of<em> Lac</em> operon. The <em>Lac </em>operon consists of three, structural genes,an operator and a promoter.The product of Lac operon is involved in the conversion of disaccharide lactose into glucose and Galactose.
Lactose and its analogs are inducers of<em> Lac </em>operon. So, the structural genes are best expressed in presence of Lactose. Glucose and galactose are repressors of lac gene so the genes are repressed in presence of glucose.
Parenteral route
injecting a drug into the body, includes intradermal, SQ, IM, IV routes. Drugs given IV route produce the most rapid actions because they are given directly into the bloodstream.
It's controversial because the best source of stem cells is a human embryo (an aborted fetus).
