What is monohybrid cross and its reciprocal cross?

Question

how to compare monohybrid cross and its reciprocal cross.

Answer 1

You cant compare crosses, F1 can be compared. Monohybrid cross is cross between two heterozygotes. Reciprocal cross is the cross where you interchange the parents i.e male is taken as female and female as male. For example

Monohybrid cross = Aa x Bb where Aa is one hybrid and Bb is other and here Aa is used as female while Bb as male. Now for reciprocal cross you need to interchange the parents so it becomes Bb x Aa and here Bb is male, Aa is female. Now this will give you different F1 and you can compare the F1 plants of two crosses, they should be different for traits controlled by cytoplasmic genes or mitochondrial genome. F1 of monohybrid cross should be more like Aa parent and F1 of reciprocal should be more like Bb parent for traits controlled by maternal inheritance or cytoplasmic inheritance.

Answer 2

A monohybrid cross is a genetic cross where the two parents are hybrids (heterozygotes) at a single genetic locus.  So, if the dominant allele of the gene is designated A, and the recessive allele a, then the cross would be:

Aa  x  Aa

A reciprocal cross would be a test to see if the trait is s*x linked and would involve two crosses.  The first cross would be with a trait in one s*x and then the second cross would be with the trait in the other s*x.  For instance, if the trait is for white fur (versus normal brown fur), then the white female is crossed with a brown male.  The reciprocal cross is the brown female crossed with a white male.