NCERT Exemplar (Objective) Based MCQs Principles of Inheritance & Variation Botany NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Which of the following statements is the most appropriate for sickle cell anaemia?
1. It cannot be treated with iron supplements
2. It is a molecular disease
3. It confers resistance to acquiring malaria
4. All of the above

Subtopic: Mendelian Disorders: Sickle Cell Anemia |

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All genes located on the same chromosome:
1. Form different groups depending upon their relative distance
2. Form one linkage group
3. Will not from any linkage groups
4. Form interactive groups that affect the phenotype

Subtopic: Linkage |

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Conditions of a karyotype 2n +1, 2n –1 and 2n + 2, 2n – 2 are called:
1. Aneuploidy
2. Polyploidy
3. Allopolyploidy
4. Monosomy

Subtopic: Non - Disjunction & Aneuploidy |

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Distance between the genes and percentage of recombination shows:
1. a direct relationship
2. an inverse relationship
3. a parallel relationship
4. no relationship

Subtopic: Recombination Gene Mapping |

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If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is:
1. Autosomal dominant
2. Autosomal recessive
3. Sex-linked dominant
4. Sex-linked recessive

Subtopic: Sex Linked Recessive Inheritance |

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In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplets codes for valine?
1. G G G
2. A A G
3. G A A
4. G U G

Subtopic: Mendelian Disorders: Sickle Cell Anemia |

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Person having genotype I^A I^Bwould show the blood group as AB. This is because of:
1. Pleiotropy
2. Co-dominance
3. Segregation
4. Incomplete dominance

Subtopic: Co-dominance |

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Z Z / ZW type of sex determination is seen in:
1. Platypus
2. Snails
3. Cockroach
4. Peacock

Subtopic: Sex Determination |

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A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
1. TT and Tt
2. Tt and Tt
3. TT and TT
4. Tt and tt

Subtopic: Monohybrid Cross: 1 |

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In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that:

1.	The alleles of two genes are interacting with each other
2.	It is a multigenic inheritance
3.	It is a case of multiple allelism
4.	The alleles of two genes are segregating independently.

Subtopic: Dihybrid Cross Analysis |

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Select Chapter Topics:

Introduction to Genetics: 1

Introduction to Genetics: 2

Monohybrid Cross: 1

Monohybrid Cross: Further Understanding

Law of Segregation

Dihybrid Cross Analysis

Dihybrid Cross: General Consideration

Dihybrid Cross: Details

Dominance Deviation from Mendel: 1

Dominance Deviation from Mendel: 2

Epistasis

Polygenic Inheritance & Pleiotropy

Conclusion

Sex Linked Inheritance: Introduction

Sex Linked Recessive Inheritance

Sex Linked Inheritance: Characteristics

Chromosomal Basis of Inheritance: Introduction

Chromosomal Basis of Inheritance: Further Considerations

Linkage

Understanding Linkage

Linkage Types

Recombination Gene Mapping

Sex Determination

Recombination & Gene Mapping

Sex Determination

Sex Determination: Further Considerations

Genic Balance Theory

Pedigree Analysis: Basics

Pedigree Analysis: Problem Solving

Pedigree Analysis: More Examples

Mendelian Disorders: Sickle Cell Anemia

Mendelian Disorders

Mendelian Disorders: Hemophilia

Mendelian Disorders: Thalassemia

Additional Note on Thalassemia

Non - Disjunction & Aneuploidy

Sex Aneuploidy - Turner & Klinefelter Syndrome

Mutation

Co-dominance

SUMMARY

Chromosomal Disorders

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Select Chapter Topics:

Introduction to Genetics: 1

Introduction to Genetics: 2

Monohybrid Cross: 1

Monohybrid Cross: Further Understanding

Law of Segregation

Dihybrid Cross Analysis

Dihybrid Cross: General Consideration

Dihybrid Cross: Details

Dominance Deviation from Mendel: 1

Dominance Deviation from Mendel: 2

Epistasis

Polygenic Inheritance & Pleiotropy

Conclusion

Sex Linked Inheritance: Introduction

Sex Linked Recessive Inheritance

Sex Linked Inheritance: Characteristics

Chromosomal Basis of Inheritance: Introduction

Chromosomal Basis of Inheritance: Further Considerations

Linkage

Understanding Linkage

Linkage Types

Recombination Gene Mapping

Sex Determination

Recombination & Gene Mapping

Sex Determination

Sex Determination: Further Considerations

Genic Balance Theory