4. why did mendel remove the male organs from the flowers of
yellow plants?

he had to prevent self-pollination. He removed the anthers from the flowers of some of the plants in his experiments.

Explanation:

He didnt want to self pollinate

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.