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USHA PUBLICATION-HEREDITY & VARIATION -EXERCISE
- The phenotypic ratio in the F2 generation of dihybrid cross is :
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- Grain colour in wheat is determined by three pairs of polygene . Follo...
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- Which of the following genes show the heterozygous condition ?
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- A dihybrid for qualitative trait is crossed with homozygous recessive ...
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- Which of the following is best suited for codominance ?
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- When a dihybrid cross is fit into a punnett square with 16 boxes , the...
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- In guinea pigs , black short hair ( BBSS ) is dominant over white long...
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- A pure tall and a pure dwarf plant were crossed to produced offsprings...
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- If AAbb xx aaBB , then phenotypic ratio of its progeny will be :
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- The experimental plant material used by Mendel was :
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- In pea plants , yellow seeds are dominant to green . If a heterozygous...
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- In a given plant , red colour ( R ) of fruits is dominant over white f...
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- Which of the following characters is not among the seven characters co...
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- When a tall plant with round seeds ( TTRR ) crossed with a dwarf plant...
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- When a cross is conducted between black feathered hen and a white feat...
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- A plant of F1 - generation has genotype ‘AABbCC’ . On selfing of this ...
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- In a monohybrid cross involving incomplete dominance , the phenotypic ...
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- How many different kinds of gametes will be produced by a plant having...
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- When tall and dwarf plants are crossed , from which cross 1 : 1 ratio ...
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- In Mirabilis , a hybrid for red ( RR ) and white ( rr ) flower produce...
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