What is the probability of two cystic fibrosis carriers having a child with cystic fibrosis? A. 0%
B. 25%
C. 50%
D. 100%

Each time two CF carriers have a child, the chances are: 25 percent (1 in 4).

Therefore, your answer is B.

i think its through the fallopian tube

explanation:

the sun shines white and black light to our planet. the white light has all the colors in it. in our upper atmosphere, we have dust particles and oxygen molecules. the white light meaning all of the colors in a rainbow shines through the upper levels of the atmopshere and the blue light scatters across the entire planet. that is why our sky is blue.