Which activity would be considered pharming?

a. using expression vectors to modulate the expression of a gene that codes for an enzyme in the liver of a cow in order to increase milk yield
b. using crispr technology to induce specific mutations in a gene in potatoes in order to infer its function
c. using crispr technology to knock out expression of a gene in order to make a more cold-resistant variety of wheat
d. using microarrays to infer how genome-wide patterns of gene expression vary between different varieties of asparagus
e. using recombinant dna technology to produce mass quantities of an antibiotic in cows

not too sure but maybe in the hot springs.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

maybe because its impossible for balloons to lift a whole entire house.

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.