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NCERT solutions for Class 12 Biology chapter 5 - Principles of Inheritance and Variation [Latest edition]

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NCERT solutions for Class 12 Biology chapter 5 - Principles of Inheritance and Variation - Shaalaa.com
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Chapter 5: Principles of Inheritance and Variation

Exercises
Exercises [Pages 93 - 94]

NCERT solutions for Class 12 Biology Chapter 5 Principles of Inheritance and Variation Exercises [Pages 93 - 94]

Exercises | Q 1 | Page 93

Mention the advantages of selecting pea plant for experiment by Mendel.

Exercises | Q 2.1 | Page 93

Differentiate between Dominance and Recessive

Exercises | Q 2.2 | Page 93

Differentiate between Homozygous and Heterozygous

Exercises | Q 2.3 | Page 93

Differentiate between Monohybrid and Dihybrid.

Exercises | Q 3 | Page 93

A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?

Exercises | Q 4 | Page 93

Explain the Law of Dominance using a monohybrid cross.

Exercises | Q 5 | Page 93

Define and design a test-cross.

Exercises | Q 6 | Page 93

Using a Punnett square, work out the distribution of phenotypic features in the first filial generation after a cross between a homozygous female and a heterozygous male for a single locus.

Exercises | Q 7 | Page 93

When a cross in made between tall plants with yellow seeds (TtYy) and tall plant with green seed (TtYy), what proportions of phenotype in the offspring could be expected to be

(a) Tall and green.

(b) Dwarf and green.

Exercises | Q 8 | Page 93

Two heterozygous parents are crossed. If the two loci are linked what would be the distribution of phenotypic features in F1 generation for a dihybrid cross?

Exercises | Q 9 | Page 93

Briefly mention the contribution of T.H. Morgan in genetics.

Exercises | Q 10 | Page 93

What is pedigree analysis? Suggest how such an analysis, can be useful.

Exercises | Q 12 | Page 93

A child has blood group O. If the father has blood group A and mother blood group B, work out the genotypes of the parents and the possible genotypes of the other offsprings.

Exercises | Q 13.1 | Page 94

Explain the terms with example - Co-dominance

Exercises | Q 13.2 | Page 94

Explain the following terms with example

Incomplete dominance

Exercises | Q 14 | Page 94

What is point mutation? Give one example.

Exercises | Q 15 | Page 94

Who had proposed the chromosomal theory of inheritance?

Exercises | Q 16 | Page 94

Mention any two autosomal genetic disorders with their symptoms.

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Chapter 5: Principles of Inheritance and Variation

Exercises
NCERT solutions for Class 12 Biology chapter 5 - Principles of Inheritance and Variation - Shaalaa.com

NCERT solutions for Class 12 Biology chapter 5 - Principles of Inheritance and Variation

NCERT solutions for Class 12 Biology chapter 5 (Principles of Inheritance and Variation) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Class 12 Biology solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 12 Biology chapter 5 Principles of Inheritance and Variation are Extensions of Mendelian Genetics (Deviation from Mendelism), Polygenic Inheritance, Linkage and Crossing Over, Chromosomal Theory of Inheritance, Genetic Disorders, Mendelian Inheritance - Mendel’s Laws of Heredity, Sex Determination in Birds, The Law of Dominance, The Law of Segregation (Law of Purity of Gametes), Intragenic Interactions - Incomplete Dominance, Intragenic Interactions - Codominance, Inheritance of Two Genes (Dihybrid Cross), Introduction of Principles of Inheritance and Variation, Principles of Inheritance and Variation Question, Inheritance of One Gene (Monohybrid Cross), Concept of Mutation, Pedigree Analysis, Heredity and Variation, Sex Determination in Honey Bees, Mendelism, Terminology Related to Mendelism, Mendel’s experiments on pea plant, Monohybrid Cross, Punnett Square, Test Cross, The Law of Independent Assortment, Mendelian Genetics, Historical Development of Chromosome Theory, Chromosomal Abnormalities, Intragenic Interactions - Incomplete Dominance, Intragenic Interactions - Dominance, Intragenic Interactions - Codominance, Sex Determination, Sex Determination in Some Insects, Chromosomal Theory of Inheritance: Law of Segregation, Chromosomal Theory of Inheritance: Law of Independent Assortment, Multiple Alleles, Linkage and Recombination, Sex Determination in Human, Intragenic Interactions - Pleiotropy, Comparison Between Gene and Chromosome Behaviour.

Using NCERT Class 12 solutions Principles of Inheritance and Variation exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 12 prefer NCERT Textbook Solutions to score more in exam.

Get the free view of chapter 5 Principles of Inheritance and Variation Class 12 extra questions for Class 12 Biology and can use Shaalaa.com to keep it handy for your exam preparation

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