The genotype of vestigial wings in $Drosophila$ is . . . . . . .

Which scientist did not contribute to the rediscovery of Mendel's results?

When an allele fails to express itself in the presence of another allele, the former is said to be

In a cross between a red flower and a white flower,the offspring have red flowers in the majority,while white flowers are much less frequent. In this cross,the red colour character is:

The first "geneticist" was

Based on Mendel's experiments,explain the concepts of factors,dominant/recessive traits,genotype,and phenotype.