Principle of Inheritance and Variation Class  12 NEET Questions Pdf for ruhs bsc nursing entrance exam 2022-23 : 

Principle of Inheritance and Variation is important for class 12 students appearing for CBSE board exam as well as nursing Aspirants also. Below we are provided MCQ on Principle of Inheritance and Variation Prepared by subject experts and students can refer these Principle of Inheritance and Variation NEET MCQ Questions for their exam preparation. Below MCQ questions and answer are prepare for class 12 and Nursing students. These fully solved MCQ questions are applicable to all college students, freshers or experienced as well as various tests & contests in colleges. Students can enhance their knowledge by regular practice which will help them crack any exam exam. These MCQs provided here help students to understand each Concept of the chapter in the easy and interesting way. Students can practice these MCQ thoroughly in order to score maximum marks in the exam.

MCQ on Principle of Inheritance and Variation Class 12 :  

1. An individual’s collection of genes is called______

(a) Genotype

(b) Phenotype

(c) Trait

(d) None of the above

Answer : A

2. Name the scientist who descovered the laws of Heredity.

(a) Gregor Mendel

(b) Newton

(c) Punnett

(d) None of the above

Answer : A

3. Who introduced chromosomal theory of inheritance?

(a) Mendel

(b) Sutton

(c) Reginald

(d) Boyen

Answer : B

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

(a) autosomal dominant

(b) autosomal recessive

(c) sex-linked dominant

(d) sex-linked recessive.

Answer: D

5. The plant Mendel used to study inheritance of two genes is____________

(a) Apple

(b) Mango

(c) Garden pea

(d) Potato

Answer : C

6. The allele which is unable to express its effect in the presence of another is called____________

(a) Co-dominant

(b) Supplementary

(c) Complementary

(d) Recessive

Answer : D

7. A plant having the genotype AABbCC will produce ______ kinds of gametes.

(a) 5

(b) 4

(c) 3

(d) 2

Answer : D

8. Female heterogamety is______________

(a) Two different types of gametes are produced by females

(b) Four different types of gametes are produced by males

(c) Can be both (a) and (b)

(d) None of these

Answer : A

9. An analysis of traits in several generation of a family is called the________

(a) Pedigree analysis

(b) Mendel analysis

(c) Punneet analysis

(d) None of the above

Answer: A

10. Colour blindness is an _________ linked recessive trait.

(a) Z chromosome

(b) Y chromosome

(c) X chromosome

(d) None of the above

Answer : C

11. In most species, mitochondrial DNA is passed down from_________

(a) DNA

(b) Mother and Father

(c) Father

(d) Mother

Answer: D

12. Punnett square was developed by___________

(a) Mendel

(b) Watson and Sutton

(c) Raginald

(d) Boveri

Answer : C

13. Down’s syndrome is a___________

(a) Mendelian disorder

(b) Chromosomal disorder

(c) Can be (a) or (b)

(d) None of the above

Answer ::B

14. A recessive allele is expressed in__________

(a) heterozygous condition only

(b) homozygous condition only

(c) F3 generation

(d) both homozygous and heterozygous conditions.

Answer: B

15. A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents ?

(a) TT and Tt

(b) Tt and Tt

(c) TT and TT

(d) Tt and It

Answer: B

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

(a) GGG

(b) A AG

(c) G A A

(d) GUG

Answer: D

17. In a monohybrid cross between two heterozygous individuals, percentage of pure homozygous individuals obtained in F1 generation will be_____________

(a) 25 %

(b) 50 %

(c) 75 %

(d) 100 %

Answer: B

18. A man marries a woman and both do not show any apparent traits of inherited disease. Five sons and two daughters are born, and three of their sons suffer from a disease. However, none of the daughters is affected. The following mode of inheritance for the disease is__________

(a) Sex-linked recessive

(b) Sex-linked dominant

(c) Autosomal dominant

(d) None of the above

Answer : A

19. A trait that “overpowers” and hide another trait is called___________

(a) Overpowering trait

(b) Complex trait

(c) Recessive trait

(d) Dominant Trait

Answer: D

20. Mendal’s law can be applicable only when_________

(a) Characters are linked

(b) Parents are pore breed

(c) F1 generation in monohybrid cross show 2 type of individuals

(d) Onepair of contiasting characters depends on another pair

Answer : A

21. Mendel’s Law of independent assortment holds good for genes situated on the__________

(a) non-homologous chromosomes

(b) homologous chromosomes

(c) extra nuclear genetic element

(d) same chromosome.

Answer: B

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

(a) Pod shape

(b) Pod colour

(c) Location of flower

(d) Location of pod

Answer: D

23. Which of the following is incorrect regarding ZW – ZZ type of sex determination ?

(a) It occurs in birds and some reptiles.

(b) Females are homogametic and males are heterogametic.

(c) 1:1 sex ratio is produced in the offsprings.

(d) All of these

Answer: B

Above you will find a list of Principle of Inheritance and Variation MCQ Questions and answers Pdf are prepared as per the latest prescribed NCERT syllabus. Ace up your nursing entrance preparation with MCQ on Principle of Inheritance and Variation available here to enhance your exam preparation level. Understand the each MCQ clearly by consistently practicing the the Principle of Inheritance and Variation Class 12 Multiple Choice Questions and score well in your exams.

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