Principles of Inheritance and Variation MCQ Questions for Class 12 Biology Chapter 5 with Answers

Find here the NCERT chapter-wise Multiple Choice Questions from Class 12 Biology book Chapter 5 Principles of Inheritance and Variation with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Principles of Inheritance and Variation. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

NCERT MCQ Chapters for Class 12 Biology

Q1. ZZ/ZW type of sex determination is seen in

(i) platypus
(ii) snails
(iii) cockroach
(iv) peacock

(iv) peacock

Q2. In the hexaploid wheat, the haploid (n) and basic (X) numbers of chromosomes are

(i) n = 7 and X = 21
(ii) n = 21 and X = 21
(iii) n = 21 and X = 7
(iv) n = 21 and X = 14

(iii) n = 21 and X = 7

Q3. The possibility of all genotypes of offspring in a genetic cross is calculated by a graphical representation which was developed by

(i) Komberg
(ii) T.H. Morgan
(iii) Gregor Mendel
(iv) Reginald Punnett

(iv) Reginald Punnett

Q4. If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is:

(i) Autosomal dominant
(ii) Autosomal recessive
(iii) Sex-linked dominant
(iv) Sex-linked recessive.

(iv) Sex-linked recessive.

Q5. Rh+ individual gene may be:

(i) rr
(ii) TT
(iii) Rr
(iv) Both (i) and (iii)

(iii) Rr

Q6. Person having genotype IA IB would show the blood group as AB. This is because of

(i) pleiotropy
(ii) co-dominance
(iii) segregation
(iv) incomplete dominance.

(ii) co-dominance

Q7. Haemophilia is due to

(i) Factor-VIII
(ii) Factor-VII
(iii) Factor-IX
(iv) Factor-VI

(i) Factor-VIII

Q8. From a cross AABb x aaBb, the genotypes AaBB : AaBb : Aabb will be obtained in the ratio

(i) 1:1:2
(ii) 1:2:1
(iii) 2:1:1
(iv) 2:1:2

(ii) 1:2:1

Q9. Distance between the genes and advantage of recombination shows:

(i) a direct relationship
(ii) an inverse relationship
(iii) a parallel relationship
(iv) no relationship.

(i) a direct relationship

Q10. Gunetical identification of male human is:

(i) By Nucleus
(ii) By cells
(iii) By Autosome
(iv) By Sex-chromosome

(iv) By Sex-chromosome

Q11. In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplets codes for valine ?

(i) GGG
(ii) A AG
(iii) G A A
(iv) GUG

(iv) GUG

Q12. Turner syndrome is

(i) XYY
(ii) XO
(iii) XXX
(iv) XXY

(ii) XO

Q13. When ‘Aa’ is crossed with ‘aa’, (A is dominant over a)

(i) all the offspring will have dominant phenotype.
(ii) all the offspring will have recessive phenotype.
(iii) 50% of offspring will have dominant phenotype and 50% will have recessive phenotype.
(iv) 75% of offspring will have dominant phenotype and 50% will have recessive phenotype.

(iii) 50% of offspring will have dominant phenotype and 50% will have recessive phenotype.

Q14. Conditions of a karyotype 2n + 1 and 2n ± 2 are called:

(i) Aneuploidy
(ii) Polyploidy
(iii) Allopolyploidy
(iv) Monosomy.

(i) Aneuploidy

Q15. Loss of Melanin pigment cause for:

(i) Colourblindness
(ii) Depigmentation
(iii) Phenyl Ketoneuria
(iv) Alkaptoneuria

(ii) Depigmentation

Q16. If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is

(i) autosomal dominant
(ii) autosomal recessive
(iii) sex-linked dominant
(iv) sex-linked recessive.

(iv) sex-linked recessive.

Q17. In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype:

(i) AABB
(ii) AaBb
(iii) aabb
(iv) aaBB

(iii) aabb

Q18. A woman with normal vision has a colorblind father. She marries a colourblind man. What proportion of their children will be colourblind?

(i) 0%
(ii) 25%
(iii) 50%
(iv) 100%

(iii) 50%

Q19. All genes located on the same chromosome:

(i) form different groups depending upon their relative distance
(ii) form one linkage group
(iii) will not form any linkage groups
(iv) form interactive groups that affect the phenotype

(ii) form one linkage group

Q20. Sucess of mendal is

(i) Selection of Peaplant
(ii) Studied of free characters
(iii) More Characters selection
(iv) Pea is Bisexual

(i) Selection of Peaplant

Q21. Which of the following will not result in variations among siblings ?

(i) Independent assortment of genes
(ii) Crossing over
(iii) Linkage
(iv) Mutation

(iii) Linkage

Q22. Which of the following terms represent a pair of contrasting characters?

(i) Homozygous
(ii) Co-dominant genes
(iii) Heterozygous
(iv) Allelomorphs

(iv) Allelomorphs

Q23. Occasionally, a single gene may express more than one effect. The phenomenon is called

(i) multiple allelism
(ii) mosaicism
(iii) pleiotropy
(iv) polygeny.

(iii) pleiotropy

Q24. A strong mutagen is:

(i) Cold
(ii) Heat
(iii) Water
(iv) X-rays

(iv) X-rays

Q25. Mendal was born in:

(i) 17th century
(ii) 18th century
(iii) 19th century
(iv) 8th century

(i) 17th century

Q26. Mendel’s Law of independent assortment holds good for genes situated on the

(i) non-homologous chromosomes
(ii) homologous chromosomes
(iii) extra nuclear genetic element
(iv) same chromosome.

(ii) homologous chromosomes

Q27. Point mutation involves

(i) Change in single base pair
(ii) Deletion
(iii) Insertion
(iv) Duplication

(i) Change in single base pair

Q28. Conditions of a karyotype 2n ± 1 and 2n ± 2 are called

(i) Aneuploidy
(ii) Polyploidy
(iii) Allopolyploidy
(iv) Monosomy.

(i) Aneuploidy

Q29. Mendel’s law of independent assortment holds good for genes situated on the :

(i) non-homologous chromosomes
(ii) homologous chromosomes
(iii) extra nuclear genetic element
(iv) same chromosome.

(i) non-homologous chromosomes

Q30. Two genes very close on a chromosome will show:

(i) No crossing over
(ii) High crossing over
(iii) Hardly an crossing over
(iv) Only double crossing overy

(i) No crossing over

Q31. The colour based contrasting traits in seven contrasting pairs, studied by Mendel in pea plant were

(i) 1
(ii) 2
(iii) 3
(iv) 4

(iii) 3

Q32. Mutations which arise suddenly in nature are called

(i) Spontaneous mutations
(ii) Gene mutations
(iii) Induced mutations
(iv) Chromosomal mutations

(i) Spontaneous mutations

Q33. If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is

(i) Autosomal dominant
(ii) Autosomal recessive
(iii) Sex-linked dominant
(iv) Sex-linked recessive.

(iv) Sex-linked recessive.

Q34. The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to :

(i) quantitative trait
(ii) Mendelian trait
(iii) polygenic trait
(iv) maternal trait.

(ii) Mendelian trait

Q35. An lndividual with into identical alleles is:

(i) Hybrid
(ii) Dominant
(iii) Homozygous
(iv) Heterozygous

(iii) Homozygous

Q36. Which of the following characters was not chosen by Mendel ?

(i) Pod shape
(ii) Pod colour
(iii) Location of flower
(iv) Location of pod

(iv) Location of pod

Q37. Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child ?

(i) Two X chromosomes
(ii) Only one Y chromosome
(iii) Only one X chromosome
(iv) One X and one Y chromosome

(i) Two X chromosomes

Biology MCQs for Class 12 with Answers PDF Chapter Wise

I Think the given NCERT MCQ Questions for class 12 Biology book Chapter 5 Principles of Inheritance and Variation with Answers Pdf free download will assist you. If you’ve got any queries regarding CBSE Class 12 Biology Principles of Inheritance and Variation MCQs Multiple Choice Questions with Answers, drop a comment below and that we will come back to you soon.

Biology MCQ For Class 12 Chapter keen with Answers (Test and PDF)

Biology MCQ For Class 12 Chapter keen with Answers are a huge resource for the board test arranging. The people who need to get the passing marks in the CBSE class twelfth board test can use the Biology Multiple choice requests to practice. It is the best methodology to chip away at the finished result. Close by that it helps the students with growing the overall appreciation in the subject and work on the data in the assessments.

Beside the PDF archive of Biology we are giving the electronic test which will help in everyday act of the Mathematical Problems. Thusly, students who have started their board test course of action can include the NCERT Biology MCQ Questions for Class 12 with Answers. Moreover very advantageous for the promising new kids in town have completed their outline for the term 1 test 2021-22.

Biology MCQ Questions for Class 12 with Answers Pdf Download

Rehearsing NCERT Online Biology MCQ Questions for Class 12 with Answers is perhaps the most effective way to plan for the CBSE Class 12 board test. There is not a viable replacement for steady practice whether one needs to comprehend an idea completely or one needs to score better. By rehearsing more second Year Biology MCQs with Answers Pdf Download, understudies can work on their speed and exactness which can help them during their board test.

Class 12 Biology MCQs Multiple Choice Questions with Answers

Understudies can get to the CBSE NCERT MCQ Questions of Class 12 Biology with Answers Pdf of all Chapters liberated from cost from here. Utilizing the assets accessible you can score well in the test. Test your critical thinking abilities by noting the Biology Multiple Choice Questions with Answers for Class 12 PDF all alone.

Biology MCQ Questions for Class 12 with Answers Pdf Download

Rehearsing NCERT Online Biology Objective Questions For Class 12 Pdf Answers is perhaps the most ideal way to plan for the CBSE Class 12 board test. There is not a viable replacement for reliable practice whether one needs to comprehend an idea completely or one needs to score better. By rehearsing more second Year Biology MCQs with Answers Pdf Download, understudies can work on their speed and precision which can help them during their board test.

Numerous Choice Questions of twelfth Class Biology Chapter Wise

You can get ready really for the Class 12 Biology Exam as they assist you with being comfortable with the sort of inquiries showing up in the test. Moreover, access the Chapter Wise MCQs of Class 12 Biology and set up the points and subtopics in it. To score well take a stab at rehearsing the rundown of Multiple Choice Type Questions gave in the connections underneath.

Different Choice Questions for twelfth Class Biology with Answers PDF

You will track down a rundown of Chapterwise MCQ Questions with Answers for CBSE Class 12 Biology here to start your planning. Comprehend the ideas and practice Objective Type Questions for twelfth Class Biology however much you can to score well. Tap on the individual Chapter connection of twelfth Standard Biology you need to practice and profit the comparing points MCQ Quiz Questions.

Who should Practice Biology – Class 12 MCQs?

  • Understudies who are planning for different school tests, for example, unit-tests, term-tests, semester tests, half-yearly and yearly tests and assessments on Biology-Class 12.
  • Understudies who are getting ready for Online/Offline Tests/Contests in Biology for class 12.
  • Understudies who wish to hone their insight into Biology.
  • Understudies who are concentrating in CBSE, ICSE, IGCSE schools as well as different State Board schools.
  • Understudies who are planning for serious assessments like NTSE, Olympiad, and so forth for class 12.
  • Understudies who are planning for Central board assessments in Biology specifically CBSE, ICSE, and NIOS Board.
  • Understudies who are planning for State board assessments in Biology like PUC, Intermediate tests, and so on
  • Understudies who are getting ready for designing and clinical selection tests like NEET, IIT JEE, AIIMS, JIPMER and SAT Exams in Biology.
  • Biology MCQ For Class 12 Chapter astute with Answers PDF Download
  • Biology MCQ For Class 12 Chapter astute with answers PDF Download records are given here free of charge of cost. Understudies able to speed up and precision in settling these inquiries are expected to rehearse however much as could be expected. Since there is not a viable alternative for it. For the comforts of the understudies we have furnished the part savvy Biology MCQs with replies here.

Biology MCQ For Class 12 Chapter savvy with answers Online Test

Biology MCQ For Class 12 Chapter savvy with answers Online Test is a sort of Mock Test that will assist you with taking care of the few issues of Std twelfth NCERT Biology Books. To have a decent groundwork for your impending board test then you should endeavor these internet based tests for Biology. It will assist you with knowing regardless of whether your arrangement is continuing the correct way. Additionally, the Online Multiple decision questions will give you certainty to show up in the board test and take care of the complicated issues quicker.

Advantages of CBSE NCERT MCQs for Class 12 Biology

  • NCERT CBSE KVS Class 12 Biology MCQs will assist the children with reinforcing ideas and further develop marks in tests and tests.
  • These numerous decision inquiries for Biology Class 12 will assist with further developing logical and complex issue unraveling abilities.
  • Daily act of different subject shrewd MCQs will assist with fostering a solid comprehension of every theme which you will recollect till date of your tests
  • You can likewise reconsider all Biology sections appropriately and save time during your group tests and tests.

Benefits of cbseMCQ.com MCQ Questions for Class 12 Biology

Coming up next are not many significant advantages of CBSE MCQs with Answers for Class 12 Biology distributed by cbseMCQ.com:

  • This multitude of MCQs with answers are delivered by subject specialists for a wide range of understudies.
  • It permits everybody to download CBSE Class 12 Biology Chapter-wise MCQs question keep money with addresses in free pdf organization and practice them for additional investigations.
  • These various decision inquiries for twelfth class Biology will help you to improve calculated and subject information abilities.
  • Additionally, you can reconsider all Biology sections appropriately whenever and save significant season of yours during class tests and yearly tests readiness. By this, you can dominate CBSE Class 12 Biology and play with words without any problem.

FAQs on CBSE MCQs

Q1. What is the best strategy while answering the Multiple Choice Questions for exams?

The best strategy to follow while answering the MCQ Questions for exams is to go through the question as many times as possible and understand it clearly.

Q2. Where to download CBSE MCQs for all Classes and Subjects?

CBSE MCQs for all the classes and subjects are provided online or you can view them on our site. Detailed description of the questions is given by subject experts and you can use them as a reference during your preparation.

Q3. What is NCERT Exemplar and where can we get its Solutions?

NCERT Exemplars are basically practice-books that contain additional questions of higher level and give you comprehensive and thorough learning. The NCERT Solutions for the questions are present on our site or you can find them online too.

Q4. Which Book is best for CBSE MCQs?

CBSE Textbooks can be great to guide you for any exam and has detailed solutions for the questions. All the Solutions are explained in a comprehensive manner and are recommended by many subject experts.

Q5. What are the benefits of CBSE MCQs?

CBSE MCQs lay a stronger foundation of concepts in students that can be useful for them in their later stages to prepare for any competitive exams.

Q6. How can I download the CBSE MCQs in PDF Format for free?

You can utilize the quick links on our page to view or download the CBSE MCQs of all classes in an easy way.

Q7. What is the need of NCERT Solutions and CBSE MCQs?

NCERT Solutions and CBSE MCQs will provide you an in-depth understanding of all the questions and concepts in NCERT Textbooks. The majority of the boards that prefer the NCERT Textbooks can use these Solutions for getting a grip on the subject.

Q8. Is there any website that covers MCQ Questions for CBSE Class 6 to 12?

Yes, our website is the one-stop search for all CBSE Board Examination related sources like questions papers, syllabus, exam pattern, sample papers, and Multiple choice questions papers. So, visit our site and easily find MCQs for all subjects classwise.

We hope the given CBSE MCQs for Class 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12th all subjects will help you. If you have any query regarding CBSE MCQs, drop a comment below and we will get back to you at the earliest.