When a homozygous red-flowered pea plant is crossed with a white-flowered plant, what color will be produced in the $F_1$ generation?

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

$A$ cross between one tall plant and one dwarf plant resulted in offspring having tall plants. What would be the genotype of offsprings?

If two pea plants with red flowers,whose genotypes are unknown,are crossed,$75\%$ of the offspring have red flowers and $25\%$ have white flowers. The genotypes of the red-flowered parent plants must be:

In a cross,$45$ tall and $15$ dwarf plants are produced. The genotype of the parents is .....

In hybridization,$Tt \times tt$ gives rise to progeny in the ratio of: