2
Question
The crossing of F1 hybrid to one of its parents is known as _________.
The crossing of F1 hybrid to one of its parents is known as _________.
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Solution
The correct option is B back cross
The crossing of F1 hybrid with one of its parents is called a back cross.
This includes crossing with either dominant or recessive parents.
In a test cross, F1 hybrid is crossed with the recessive parent .
In an out cross, the F1 hybrid is crossed with the dominant parent.
Test cross and out cross are types of back cross.
A pair of crosses involving male of one type and female of another type and then vice-versa is called a reciprocal cross.
For example, in one cross, if pollen from the tall plant is dusted on the stigma of a dwarf plant, then its reciprocal cross would be the transfer of the pollen from dwarf plant to the stigma of the tall plant.
The crossing of F1 hybrid with one of its parents is called a back cross.
This includes crossing with either dominant or recessive parents.
In a test cross, F1 hybrid is crossed with the recessive parent .
In an out cross, the F1 hybrid is crossed with the dominant parent.
Test cross and out cross are types of back cross.
A pair of crosses involving male of one type and female of another type and then vice-versa is called a reciprocal cross.
For example, in one cross, if pollen from the tall plant is dusted on the stigma of a dwarf plant, then its reciprocal cross would be the transfer of the pollen from dwarf plant to the stigma of the tall plant.
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