Class 12 biology Principles of Inheritance and Variation Free test quiz

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Attempt Principles of Inheritance and Variation Free test quiz

Time: 10 Minutes for 10 Question.

12th Biology: Principles of Inheritance and Variation

1 / 10

1. Albinism is known to be due to an autosomal recessive mutation. The first child of a couple with normal skin pigmentation was an albino. What is the probability that their second child will also be an albino ?

100%

25%

50%

75%

2 / 10

2. The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes?

Five

Four

Seven

Six

3 / 10

3. Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement

Thalassemia is due to less synthesis of globin molecules

Both are due to a quantitative defect in globin chain synthesis

Both are due to a qualitative defect in globin chain synthesis

All of these

4 / 10

4. The process of mating between closely related individuals is

self breeding

inbreeding

hybridization

heterosis

5 / 10

5. A normal green male maize is crossed with albino female. The progeny is albino because

trait for albinism is dominant

the albinos have biochemical to destroy plastids derived from green male

plastids are inherited from female parent

green plastids of male must have mutated

6 / 10

6. If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is

0.5

7 / 10

7. A disease caused by an autosomal primary non-disjunction is

Down's syndrome

Klinefelter's syndrome

Turner's syndrome

8 / 10

8. Sickle cell anaemia is

caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin.

caused by a change in a single base pair of DNA.

characterized by elongated sickle like RBCs with a nucleus.

an autosomal linked dominant trait.

9 / 10

9. In sickle-cell anaemia, shape of RBCs under oxygen tension becomes

biconcave disc like

elongated and curved

circular

spherical

10 / 10

10. When a single gene influences more than one traits it is called

pleiotropy

epistasis

pseudodominance

None of these

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FAQ of chapter wise biology mcq quiz

Q1: What topics are covered in the u0022Principles of Inheritance and Variationu0022 chapter of Class 12 Biology?

Answer: The u0022Principles of Inheritance and Variationu0022 chapter in Class 12 Biology covers topics related to genetics, heredity, and the mechanisms of inheritance in living organisms. It explores how traits are passed from one generation to another and the variation that occurs within populations.

Q2: How will the free test quiz benefit me in preparing for my Class 12 Biology exam?

Answer: The free test quiz on u0022Principles of Inheritance and Variationu0022 offers a valuable opportunity to assess your understanding of the chapter’s concepts and improve your knowledge. By taking the quiz, you can identify weak areas, strengthen your grasp on important topics, and enhance your overall exam preparation.

Q3: Is the quiz designed to match the format of the Class 12 Biology exam?

Answer: Yes, the quiz is carefully crafted to align with the format and difficulty level of the Class 12 Biology exam. It includes multiple-choice questions, short answer questions, and other question types commonly found in the actual examination, providing you with a realistic test-taking experience.

Q4: Can I take the free test quiz multiple times to track my progress?

Answer: Absolutely! You can take the free test quiz on u0022Principles of Inheritance and Variationu0022 as many times as you like. Repeated attempts will help reinforce your understanding of the subject and monitor your progress over time.

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