Alinear piece of viral dna of 8 kb can be cut with either of two restriction enzymes (x and y). these are subjected to electrophoresis and produce the following bands:
cutting the same 8 kb piece with both enzymes will result in bands at 4.0, 2.5, 1.0, and 0.5.
of the possible arrangements of the sites given below, which one is most likely?

a) y between 2 & 3, x between 4 & 5, and y between 6 & 7.
b) y between 2 & 3, x between 3 & 4, and y between 7 & 8.
c) x between 3 & 4, y between 4 & 5, and y between 5 & 6.
d) y between 2 & 3, y between 3 & 4, x between 4 & 5.
e) y between 0 & 1, x between 3 & 4, y between 5 & 6.

i'm sorry, but can you list the answers? i cannot with something i don't know the answers to

,

chris

you need more balloons

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.