Chronic infection with the bacterium heliobacter pylori is linked to stomach cancer. the bacterium secretes toxins which cause inflammation in the stomach lining. high salt diets, such as those in japan and china, enhance the ability of h. pylori to successfully infect the stomach lining. in the initiator promoter model of

a.
both the high salt diet and the h. pylori infection are initiators.

b.
the high salt diet is the initiator, and the h. pylori infection is the promoter.

c.
the high salt diet is the promoter, and the h. pylori infection is the initiator.

d.
both the high salt diet and the h. pylori infection are promoters.

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.