At the beginning of an experiment, a scientist proposes an educated guess
about what will happen. What is this guess called?

A. A hypothesis

B. A peer review

C. A conclusion

D. An analysis

The correct answer is option (A) hypothesis.

Explanation: Hypothesis is a statement that is given by the scientist before performing the experiment. This statement may be true or false.

For example, Before experiment on malarial disease, the scientist make a hypothesis that malaria is caused due to bad air. But when the experiment is performed, the scientist concluded that the malaria is caused due to mosquitoes.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)