Chromosomal number in a cell of a flowering plant is

When a heterozygous dominant is crossed with homozygous recessive than ratio of progeny will be

Definitions / Explanation : Filial progeny/F1 generation
 

Mendel cross tall and dwarf plant. In $F_{2}$-generation the observed ratio was $3: 1$ (tall: short). From this result, he deduced

$I.$ law of dominance

$II.$ law of independent assortment

$III.$ law of segregation

$IV.$ incomplete dominance

Choose the correct option

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:

If a cross is made between $AA$ and $aa$, the nature of ${F_1}$ progeny will be