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Hereditary and Variation MCQs for NEET — Botany Questions with Answers

Practice free Hereditary and Variation (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

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Which of the following was not explainedby the Mendel’s law of dominance?

Characters are controlled by discrete units called factors.

Factors occur in pairs.

Every factor has alternate forms known as alleles

In a dissimilar pair of factors one member of the pair dominatesthe other.

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Explanation

NCERT Page No. 75

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Who was the first to use statistical analysis and mathematical logics for solving biological problems?

Francis crick

Gregor Mendel

Hugo de vries

W. Bateson

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Explanation

NCERT Page No. 70

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If F2 dwarf plants were self-pollinated then the genotype of F3 & F4 plants is

TT and Tt

tt and tt

tt and Tt

Tt and Tt

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Technique(s) usedby Mendel for his hybridisation experiments

Emasculation

Bagging

Artificial hybridisation

All of the above

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Explanation

NCERT Page No. 71

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Trait expressed in F1 generation is

Parental

Recessive

Dominant

Recombinant

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Explanation

NCERT Page No. 72

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Which of the following is a monohybrid?

None

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Explanation

NCERT Page No. 73

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Test cross is used to predict the

Phenotype of test organism

Sex of test organism

Genotype of test organism

Genotypic ratio.

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Explanation

NCERT Page No. 74

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Genotypic and phenotypic ratios of monohybrid cross are

3:1 and 1:2:1

1:2:1 and 3:1

1:2:1 and 1:2:1

3:1 and 3:1

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Explanation

NCERT Page No. 74

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Incomplete dominance is present in

Snapdragon flower

Dog flower

Antirrhinum flower

All of the above

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Explanation

NCERT Page No. 76

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ABO blood grouping provides an example of

(i) co-dominance

(ii) Multiple allelism

(iii) Incomplete dominance

i and iii

i and ii

ii and iii

i, ii and iii

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Explanation

NCERT Page No. 77

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