The phenotypic ratio of a monohybrid cross in Mendelian genetics is .....

The ratio of offspring produced by a cross between an $F_1$ heterozygote and a recessive parent is ....

If a homozygous red-flowered plant (dominant) is crossed with a white-flowered plant (recessive),the offspring will be:

$A$ pure tall garden pea plant is crossed with a pure dwarf garden pea plant. When the $F_1$ generation plants are self-pollinated,the resulting genotypic ratio is:

If two individuals with genotype $Bb$ are crossed and they produce two offspring,what is the probability that the second offspring will show the recessive trait,given that the first offspring shows the dominant trait?

If a dwarf plant is treated with gibberellin,it becomes tall. If this plant is now crossed with a pure tall plant,what will be the progeny of the $F_1$ generation?