Which of the following is the correct F1 generation genotypic ratio from the dihybrid cross shown below? AABb x AABB

a. 1:2:1

b. 9:3:3:1

c.1:1

d.4:4:4:4

Does masterbation affect height growth or loss of growth hormone?

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

Which is the best example of plant tissue? the answer is d (just took the test)