In humans,a male produces sperm with genotypes $AB, Ab, aB,$ and $ab$. What would be the genotype of this individual?

What is the phenotypic ratio of a test cross in the $F_1$ generation of a dihybrid cross?

$A$ pure breeding pea plant with round yellow seeds was crossed with a pea plant having wrinkled green seeds. On selfing of the $F_1$ hybrid of this cross,$64$ progenies were obtained in the $F_2$ generation. Find out the number of $F_2$ progenies showing non-parental characters.

Types of genotype observed in a dihybrid cross are

If $AAbb \times aaBB$,then the phenotypic ratio of its $F_{2}$ progeny will be

How many pairs of chromosomes are involved in Mendelian dihybrid crosses and dihybrid crosses with linkage,respectively?