Biology 12 Imp Questions chapter 22 from past papers

Learn Biology 12 Imp Questions chapter 22 from past papers of Punjab boards. These important biology 12 mcqs, short and long questions are collected by going through different past papers of all Punjab Board Pakistan.

Why are these questions important?

These Questions are taken from past papers of Biology Class 12. These questions are top repeated of in previous papers of Biology 12 of all Punjab boards as;

      Bahawalpur Board

      D.G.Khan Board

      Faisalabad Board

      Gujranwala Board

      Lahore Board

      Multan Board

      Rawalpindi Board

Content is created and designed with intense care and diligence. Here is only the most important MCQ, short questions and long questions of Biology 12 chapter 22 Variations and Genetics.

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You can easily download in pdf format or view Biology 12 chapter mcqs, short questions and long questions  online. You can easily print these files in simple way. Here you find Biology 12 chapter 22 Variations and Genetics important mcqs, short and long questions. By Preparing these important questions, you will achieve splendid marks in Biology 12. This content is very helpful for weak students and also helpful for those students that are better at Biology 12 exam preparation. These Questions are based on the current Biology 12 syllabus according to Punjab Textbook Board.

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About This Chapter

chapter 22 Variations and Genetics of  Biology 12 enables the students to learn Genes, Alleles and Gene Pool . Students learn Mendel's Law of Inheritance. Students learn MN Blood type or Blood Group System. Students learn Dominance Relations. Students learn Multiple Alleles, Epistasis and Pleiotropy. Students learn Continuously Varying Traits. Students learn Gene linkage, crossing over, sex determination and sex linkage. Students learn Diabetes Mellitus and its Genetic Basis. This Post "Biology 12 Imp Questions chapter 22 from past papers" covers all important mcqs, short and long questions related to important  topics of this chapter.

👉Imp MCQs - Biology Class 12 CH # 22

1. Different alleles of a gene are both expressed in heterozygous condition in:

(A) Codominance

(B) Dominance

(C) Overdominance

(D) None of these

(A) Codominance

2. Secretor gene Se is present on chromosome number    

(A) 15

(B) 19

(C) 22

(D) 21

(B) 19

3. ABO  blood group system was discovered in 1901 by     

(A) Karl Landsteiner

(B) J.J Thomson

(C) Fleming

(D) T.H Morgan

(A) Karl Landsteiner

4. Which trait is transmitted directly from an affected father to only his son
    

(A) Autosomal

(B) X-linked

(C) Y-linked

(D) Both B & C

(C) Y-linked

5. The genic system for determination of sex is present in :

(A) Yeast

(B) Drosophila

(C) Algae

(D) None of these

(A) Yeast

6. A gene with multiple phenotype effect is called?

(A) Multiple allele

(B) Pleotropic allele

(C) Both

(D) None

(B) Pleotropic allele

7. Which is the basic unit of biological information :

(A) Allele

(B) Gene

(C) Protein

(D) Nucleus

(B) Gene

8. All the alleles found in a breeding population at a given time are collectively called ? 

(A) Gene pool

(B) Polygene

(C) Both

(D) None

(A) Gene pool

9. The universal donor blood group is :

(A) O

(B) B

(C) A

(D) AB

(A) O

10. Green color blindness is called:

(A) Deuteranopic

(B) Tetranopia

(C) Tritanopia

(D) Protanopia

(A) Deuteranopic

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👉Other Chapters (PDF) of Biology Class 12 Punjab Textbook Board

✅Chapter 15

Homeostasis

✅Chapter 16

Support and Movement

✅Chapter 17

Coordination and Control

✅Chapter 18

Reproduction

✅Chapter 19

Growth and Development

✅Chapter 20

Chromosomes and DNA

✅Chapter 21

Cell Cycle

✅Chapter 23

Biotechnology

✅Chapter 24

Evolution

✅Chapter 25

Ecosystem

✅Chapter 26

Some Major Ecosystems

✅Chapter 27

Man and his Environment