The alleles are
A pair of genes governing a specific character such as tallness or dwarfness
Multiple forms of genes
Genes governing eye characters
Genes present in allosomes
Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration, is called
In hybridization, $Tt × tt$ give rise to the progeny of ratio
A cross in which an organism showing a dominant phenotype is crossed with the recessive parent in order to know its genotype is called
When a gene exists in more than one form, the different forms are called
In Mendelian monohybrid cross, phenotypic ratio in $F_2$ is $3:1$. How many types of gametes are formed in $F_1$ generation