1.

Distinguish between Test cross and Back cross.

Answer»

Difference between Test cross and Back cross:

No.Test crossBack cross
i.The cross between F1 hybrid and its recessive parent is called test cross.The cross between F1 hybrid and any one of its parents (either dominant or recessive) is called back cross.
ii.A test cross is always a back cross.A back cross is not always a test cross.
iii.Test cross determines the genetic constitution of an organism.Back cross helps in improving and obtaining desirable characters
iv.Test cross produces both dominant and recessive characters in equal proportion.Back cross with dominant parent produces all dominant character.


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