If a cross produces a 3:1 phenotypic ratio in F2 offspring, what type of cross is it? How do you know that? 4. If a cross produces a 9:3:3:1 phenotypic ratio in F2 offspring, what type of cross is it? How do you know that?

wait any answer choices plz

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

answer: i feel like it would be 3

explanation: