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Definition and Significance of Test Cross

A cross betwe...

Question

A cross between an individual of unknown genotype and a double recessive tester is called:

A

Back cross

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B

Test cross

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C

Monohybrid cross

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D

Dihybrid cross

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Q. A cross between two individuals results in a ratio of 9 : 3 : 3 : 1 for four possible phenotypes of progeny. This is an example of a :
(a) dihybrid cross
(b) monohybrid cross
(c) test cross
(d) none of these

Q. A cross where two pairs of alleles are considered is a
(a) dihybrid cross
(b) monohybrid cross
(c) polyhybrid cross
(d) test cross

A cross between an individual of unknown genotype and a double recessive tester is called:

Q. Assertion :Test cross is the cross between the

F_{1}

progeny and either of the parent types. Reason: Back cross is the cross between

F_{1}

progeny and the double recessive genotype.

Q. The cross between an individual with unknown genotype and recessive parent is called a .

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