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

Biology Textbook for Class 12

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Chapters

NCERT Biology Class 12

Biology Textbook for Class 12

Chapter 5 - Principles of Inheritance and Variation

Pages 93 - 94

Q 1 | Page 93

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

Q 2.1 | Page 93

Differentiate between Dominance and Recessive

Q 2.2 | Page 93

Differentiate between Homozygous and Heterozygous

Q 2.3 | Page 93

Differentiate between Monohybrid and Dihybrid.

Q 3 | Page 93

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

Q 4 | Page 93

Explain the Law of Dominance using a monohybrid cross.

Q 5 | Page 93

Define and design a test-cross.

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.

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.

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?

Q 9 | Page 93

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

Q 10 | Page 93

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

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.

Q 13.1 | Page 94

Explain the terms with example - Co-dominance

Q 13.2 | Page 94

Explain the following terms with example

Incomplete dominance

Q 14 | Page 94

What is point mutation? Give one example.

Q 15 | Page 94

Who had proposed the chromosomal theory of inheritance?

Q 16 | Page 94

Mention any two autosomal genetic disorders with their symptoms.

NCERT Biology Class 12

Biology Textbook for Class 12

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 Biology Textbook for Class 12 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at shaalaa.com are providing 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 Heredity and Variation, Mendel’s Laws of Inheritance, Deviations from Mendelism - Incomplete Dominance, Co-dominance, Multiple Alleles and Inheritance of Blood Groups, Pleiotropy, Elementary Idea of Polygenic Inheritance, Chromosome Theory of Inheritance, Sex Determination in Humans, Linkage and Crossing Over, Mendelian Disorders, Chromosomal Disorders, Sex Determination in Birds, Sex Determination in Honey Bees, Introdution of Inheritance of One Gene, Law of Dominance, Law of Segregation, Law of Segregation - Incomplete Dominance, Law of Segregation - Co-dominance, Law of Independent Assortment, Introduction of Inheritance of Two Genes, Introduction of Sex Determination, Concept of Mutation, Pedigree Analysis, Principles of Inheritance and Variation Introduction, Principles of Inheritance and Variation Question.

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.

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