Punjab 12th Class Biology Inheritance Mcqs Test Online Biology Inheritance Mcqs Test Online Punjab Boards 12th Class 123456789101112131415Show paginator Hide paginator Question 1 of 15Biology 1. Albinsim is a recessive gene. A woman with albino father marries as albino man, the proportion of her progeny is: 1.2 normal: 1 albino 2.All normal 3.All albino 4.1 normal: 1 albinoQuestion 1 of 15Question 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.Crenation 2.Deplasmolysis 3.Plasmolysis 4.Haemolysis Question 2 of 15Question 3 of 15 3. Genes located on same locus bit having different expressions are: 1.Polygenes 2.Oncogenes 3.Condominants4.Multiple alleles Question 3 of 15Question 4 of 15 4. Whether an allele is dominant or recessive depends on: 1.Which chromosome it is on 2.How common the allele is relative to other alleles 3.Whether it is inherited from the mother or the father 4.Whether it shows expression in heterozygous state or notQuestion 4 of 15Question 5 of 15 5. 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.Incomplete dominance 4.Sex linkage Question 5 of 15Question 6 of 15 6. Mendel’s law of independent assortment can be demonstrated by: 1.Test cross 2.Dihybrid cross 3.Back cross 4.Monohybrid cross Question 6 of 15Question 7 of 15 7. If a man of M blood group marries a woman of N blood group all their children will have: 1.M blood group 2.N blood group 3.MN blood group 4.O blood group Question 7 of 15Question 8 of 15 8. Rh blood group system is encoded by three genes C, D and E which occupy ________ tightly linked loci: 1.Four 2.Two 3.Five 4.Three Question 8 of 15Question 9 of 15 9. Phenomena of an allele of one gene suppressing the activity of allele of another gene is called: 1.Inactivation 2.Dominance 3.Suppression 4.Epistasis Question 9 of 15Question 10 of 15 10. If red eyed (dominant) fly is mated with white eyed (ressessive) fly, the ratio of red to white eyed in F₂ generation would be: 1.2:1 2.2:2 3.1:34.3:1 Question 10 of 15Question 11 of 15 11. Blood group in human beings are controlled by: 1.3 alleles in which none is dominant 2.4 alleles in which A is dominant 3.3 alleles in which A is recessive 4.3 alleles in which A and B are co-dominant and I is recessive Question 11 of 15Question 12 of 15 12. 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.Linked genes 3.Epistatic gene 4.Pleiotropic genes Question 12 of 15Question 13 of 15 13. 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.A or B only 3.AB or O only 4.A, B, AB or OQuestion 13 of 15Question 14 of 15 14. A heterozygous red-eyed female Drosophila mated with a white-eyed male would produce: 1.Half red and half white-eyed female as well as male in the F₁2.All white-eyed females and half red and half white eyed males in the F₁ 3.Red-eyed females and white males in the F₁ 4.White-eyed- females and red eyed males in the F₁ Question 14 of 15Question 15 of 15 15. All chromosomes other than sex-chromosomes are called: 1.Mesosome 2.Autosome 3.Lysosome 4.Polysome Question 15 of 15 Loading... Test By Subject Punjab Test By Topics 12th Class Biology You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.