Question

how do the two factors for a character present in diploid cells behave at the time gamete formatio.

Answer 1

This can be explained by mendal law which is also known as law of sagregation.

Answer 2

According to the Mendel's Law, Two factors called X and Y, segregate during gamete formation. Hence gamete is either X or Y. According to the principle of segregation in it, two factors of a character are separated at the timeof gamete formation and each gamete gets only one factor for that character.