Biology Inheritance Mcqs Test Online Punjab Boards 12th Class

Please wait...

• <<
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• >>

 

Question 1 of 15

Biology

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

1.Four

2.Five

3.Two

4.Three

Question 1 of 15

Question 2 of 15

2. 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.AB only

2.AB or O only

3.A, B, AB or O

4.A or B only

Question 2 of 15

Question 3 of 15

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

1.All normal

2.1 normal: 1 albino

3.2 normal: 1 albino

4.All albino

Question 3 of 15

Question 4 of 15

4. Blood group in human beings are controlled by:

1.3 alleles in which A and B are co-dominant and I is recessive

2.4 alleles in which A is dominant

3.3 alleles in which none is dominant

4.3 alleles in which A is recessive

Question 4 of 15

Question 5 of 15

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

1.2:2

2.2:1

3.1:3

4.3:1

Question 5 of 15

Question 6 of 15

6. Whether an allele is dominant or recessive depends on:

1.How common the allele is relative to other alleles

2.Whether it shows expression in heterozygous state or not

3.Which chromosome it is on

4.Whether it is inherited from the mother or the father

Question 6 of 15

Question 7 of 15

7. A heterozygous red-eyed female Drosophila mated with a white-eyed male would produce:

1.Red-eyed females and white males in the F₁

2.All white-eyed females and half red and half white eyed males in the F₁

3.Half red and half white-eyed female as well as male in the F₁

4.White-eyed- females and red eyed males in the F₁

Question 7 of 15

Question 8 of 15

8. Phenomena of an allele of one gene suppressing the activity of allele of another gene is called:

1.Dominance

2.Epistasis

3.Suppression

4.Inactivation

Question 8 of 15

Question 9 of 15

9. Genes located on same locus bit having different expressions are:

1.Multiple alleles

2.Oncogenes

3.Condominants

4.Polygenes

Question 9 of 15

Question 10 of 15

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

1.Crenation

2.Deplasmolysis

3.Plasmolysis

4.Haemolysis

Question 10 of 15

Question 11 of 15

11. 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.Polygenes

2.Pleiotropic genes

3.Epistatic gene

4.Linked genes

Question 11 of 15

Question 12 of 15

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

1.Back cross

2.Monohybrid cross

3.Test cross

4.Dihybrid cross

Question 12 of 15

Question 13 of 15

13. All the offspring of a white hen and a black rooster are grey. The simplest explanation for this pattern of inheritance is:

1.Linkage

2.Independent assortment

3.Sex linkage

4.Incomplete dominance

Question 13 of 15

Question 14 of 15

14. All chromosomes other than sex-chromosomes are called:

1.Mesosome

2.Lysosome

3.Autosome

4.Polysome

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.MN blood group

2.O blood group

3.N blood group

4.M blood group

Question 15 of 15

 Loading...

 

Other Related test

• Punjab 9th Class Chemistry Model Paper 2 Mcqs Test Online
• Punjab 10th Class English Chapter 11 Great Expectations Mcqs Test Online
• Punjab 9th Class Islamic Studies Model Paper 4 Mcqs Test Online
• Punjab 11th Class Physics Chapter 5 Rotational and Circular Motion Mcqs Test Online
• Punjab 9th Class Math Chapter 6 Algebraic Manipulation Mcqs Test Online
• Punjab 12th Class Biology Behaviour Mcqs Test Online
• Punjab 9th Class Chemistry Chapter 1 Fundamentals of Chemistry Mcqs Test Online
• Punjab 9th Class Chemistry Chapter 5 Physical States of Matter Mcqs Test Online
• Punjab 12th Class Chemistry Chapter 11 Alcohol, Phenol and Ethers Mcqs Test Online
• Punjab 10th Class English Chapter 13 Faithfulness Mcqs Test Online