Mendel proposed the Law of Purity of Gametes based on:

If a homozygous red-flowered plant is crossed with a homozygous white-flowered plant,the offspring would be

In a cross between plants with red and white flowers,the ratio of red to white flowered plants in the $F_2$ generation was $60:20$. If a heterozygous red-flowered plant is self-pollinated,what will be the ratio of the progeny?

The proportion of plants that were dwarf and tall,respectively,in the $F_2$-generation of Mendel's experiment was?

If a heterozygous red-flowered plant is crossed with its pure-breeding red-flowered parent,the offspring will show:

$A$ tobacco plant which is heterozygous for albinism ($a$ recessive character) is self-pollinated. If $1200$ seeds are subsequently germinated,how many of the seedlings would have the parental genotype?