Mendel's Law of Segregation is based on the separation of alleles during which process?

Mendel's law of segregation is applicable to

Mendel's $9:3:3:1$ ratio is due to the law of:

Which one of the following cannot be explained on the basis of Mendel's law of dominance?

Which one of the following can be explained on the basis of Mendel's Law of Dominance?
$A$. Out of one pair of factors one is dominant and the other is recessive.
$B$. Alleles do not show any expression and both the characters appear as such in $F_2$ generation.
$C$. Factors occur in pairs in normal diploid plants.
$D$. The discrete unit controlling a particular character is called factor.
$E$. The expression of only one of the parental characters is found in a monohybrid cross.
Choose the correct answer from the options given below:

Who proposed Mendel's conclusions in the form of laws?