Punjab 12th Class Biology Inheritance Mcqs Test Online
Questions 15
Total Marks 30
Time 15 Mins
Helpful For:

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Punjab 12th Class Biology Inheritance Mcqs Test Online

Start your preparation for Punjab 12th Class Biology Inheritance Mcqs Test Online. This online test contains 15 MCQs and you have 15 Minutes to complete it. The total marks for this test are 30. This test is valid for students of All Punjab Boards (Lahore, Gujranwala, Multan, etc.) following the PCTB Syllabus. Read the questions carefully and select the correct option below to see your result.

Biology Inheritance Mcqs Test Online Punjab Boards 12th Class

 

Question 1 of 15

Biology

1. Whether an allele is dominant or recessive depends on:
1.
2.
3.
4.

Question 1 of 15

Question 2 of 15

2. When mothers anti-RH negative antibodies seep through placenta into blood circulation of foetus they start ________ of RBC of the foetus.
1.
2.
3.
4.

Question 2 of 15

Question 3 of 15

3. Genes located on same locus bit having different expressions are:
1.
2.
3.
4.

Question 3 of 15

Question 4 of 15

4. Rh blood group system is encoded by three genes C, D and E which occupy ________ tightly linked loci:
1.
2.
3.
4.

Question 4 of 15

Question 5 of 15

5. A heterozygous red-eyed female Drosophila mated with a white-eyed male would produce:
1.
2.
3.
4.

Question 5 of 15

Question 6 of 15

6. Albinsim is a recessive gene. A woman with albino father marries as albino man, the proportion of her progeny is:
1.
2.
3.
4.

Question 6 of 15

Question 7 of 15

7. Investigators do a dihybrid cross between two heterozygous and get about a 3:1 ratio among the offspring. The reason must be due to:
1.
2.
3.
4.

Question 7 of 15

Question 8 of 15

8. Blood group in human beings are controlled by:
1.
2.
3.
4.

Question 8 of 15

Question 9 of 15

9. A man who has types B blood and a woman who has type A blood could have children of which of the following phenotypes?

1.
2.
3.
4.

Question 9 of 15

Question 10 of 15

10. Phenomena of an allele of one gene suppressing the activity of allele of another gene is called:
1.
2.
3.
4.

Question 10 of 15

Question 11 of 15

11. If red eyed (dominant) fly is mated with white eyed (ressessive) fly, the ratio of red to white eyed in F₂ generation would be:
1.
2.
3.
4.

Question 11 of 15

Question 12 of 15

12. All the offspring of a white hen and a black rooster are grey. The simplest explanation for this pattern of inheritance is:
1.
2.
3.
4.

Question 12 of 15

Question 13 of 15

13. Mendel’s law of independent assortment can be demonstrated by:

1.
2.
3.
4.

Question 13 of 15

Question 14 of 15

14. All chromosomes other than sex-chromosomes are called:
1.
2.
3.
4.

Question 14 of 15

Question 15 of 15

15. If a man of M blood group marries a woman of N blood group all their children will have:
1.
2.
3.
4.

Question 15 of 15


 

Guide for Punjab Board Students

Students of BISE Lahore, Gujranwala, Multan, and other Punjab boards must follow the SLO based pattern.

Top Scoring Tips for Punjab:

  • Textbook Reading: The paper is 100% derived from PCTB books. Do not rely only on keybooks.
  • Objective Paper (20%): Practice these online MCQs repeatedly as they are taken from 5-Year Past Papers.
  • Bubble Sheet: Ensure you know how to fill the OMR sheet correctly.

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