Genotype of a plant showing dominant phenotype can be determined by

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4.Principles of Inheritance and Variation

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The genotype of a plant showing the dominant phenotype can be determined by

test cross

dihybrid cross

pedigree analysis

back cross.

(AIPMT-2010)

Solution

(a): Test cross is performed to determine the genotype of $F_2$ plant. In a typical test cross an organism showing dominant phenotype and whose genotype is to bedetermined is crossed with one that is homozygous recessive for the allele being investigated, instead of selfcrossing. The progenies of such a cross can easily be analysed to predict the genotype of the test organism. Given ahead is an illustration of test cross:

Standard 12

Biology

In a zygote if the number of alleles is two in alternate forms, the expression of adult would be

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Some pure black mice were mistakenly mixed with hybrid black mice. The quickest way to discover whether one individual black mouse is pure is

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Mendel obtained recessive character in $F_{2}$ by …$A$… the …$B$… plants. Here $A$ and $B$ refers to

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A test cross is carried out to

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(AIPMT-2012)

In pea hybrids between red flowered and white flowered strains were crossed back to pure red flowered strain. The progeny of this cross will have

medium

The genotype of a plant showing the dominant phenotype can be determined by

Solution

Similar Questions

In a zygote if the number of alleles is two in alternate forms, the expression of adult would be

Some pure black mice were mistakenly mixed with hybrid black mice. The quickest way to discover whether one individual black mouse is pure is

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