Define and design a test

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4.Principles of Inheritance and Variation

hard

Define and design a test - cross?

Option A

Option B

Option C

Option D

Solution

Test cross is a cross between an organism with unknown genotype and a recessive parent. It is used to determine whether the individual is homozygous or heterozygous for a trait.

If the progenies produced by a test cross show $50 \%$ dominant trait and $50 \%$ recessive trait, then the unknown individual is heterozygous for a trait. On the other hand, if the progeny produced shows dominant trait, then the unknown individual is homozygous for a trait. (figure)

Standard 12

Biology

Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is called

medium

(AIIMS-2008)

Punnet square is a representation to calculate

medium

$A$ : Test cross is the tool for knowing linkage between genes.
$R$ : Monohybrid test cross gives two phenotypes and two genotypes.

medium

Mendel’s law of sagregation is applicable to

medium

In wheat, when a green plant was self-fertilized, the progeny had $209$ green seedlings and $14$ white seedings. The above result indicates that

medium

Define and design a test - cross?

Solution

Similar Questions

Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is called

Punnet square is a representation to calculate

$A$ : Test cross is the tool for knowing linkage between genes. $R$ : Monohybrid test cross gives two phenotypes and two genotypes.

Mendel’s law of sagregation is applicable to

In wheat, when a green plant was self-fertilized, the progeny had $209$ green seedlings and $14$ white seedings. The above result indicates that

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$A$ : Test cross is the tool for knowing linkage between genes.
$R$ : Monohybrid test cross gives two phenotypes and two genotypes.