4. Which statements are useful for explaining the ratio of black-coated to brown-coated mice in the F2 generation?
Select all that apply.
a. The F, male produced two kinds of sperm, half carrying
an allele for black coat color, and half carrying an allele for
brown coat color.
b. The F, female produced two kinds of eggs, half carrying
an allele for black coat color, and half carrying an allele for
brown coat color.
c. An approximately three-to-one ratio of black to brown
coated mice in the F2 generation is accounted for by the
black allele being dominant over the brown allele.
d. The brown allele segregates together with the black
allele and disappears in the F, generation.

hello there,

guys i’m confused.

which rock will weather faster?

answer: b rock

correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.

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.