XII Biology Genetics/Inheritance Online Test Mdcat-2024

Instructions for Genetics/Inheritance Online Test Mdcat-2024:

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NameEmailPhone Number

1 / 50

1. Women with O blood group marries a man with AB blood group, they won't have offspring with?

a) A and B blood group

b) A blood group only

c) A and O blood group

d) O blood group

2 / 50

2. Which is the Autosomal Disease?

a) Hemophilia A

b) Hemophilia B

c) Phosphotemia

d) Blue Colour blindness

3 / 50

3. Gene B of Skin Colour in humans determines the?

a) Melanin Migration

b) Melanin Profilation

c) Converts Tyrosine to Melanin

d) Complexion of skin

4 / 50

4. What will be the percentage of phenotypically round seed progeny if a pea plant heterozygous for round seed is crossed with wrinkled seeded pea plant?

a) 25%

b) 33.3%

c) 50%

d) 100%

5 / 50

5. Gene C of Skin Colour in humans determines the?

a) Melanin Migration

b) Melanin Profilation

c) Converts Tyrosine to Melanin

d) Complexion of skin

6 / 50

6. Which is true about Autosomal Traits?

a) They equally affect both male and female populations in humans

b) They don't equally affect both male and female populations in humans

c) They are Holandric Genes

d) They consist of 23 pairs in humans

7 / 50

7. A man with Rett syndrome has married a woman with Rett syndrome having a heterozygous genotype of Rett syndrome on the X chromosome. What percentage of her offspring will have Rett syndrome?

a) 25%

b) 50%

c) 75%

d) 100%

8 / 50

8. Exceptions of Mendelian laws are?

a) Multiple Alleles

b) Co-dominance

c) Incomplete dominance

d) All of the above

9 / 50

9. Which ratio more accurately describes the Law of Independent assortment in F2 generation Of Pisum sativum?

a) 9 Parental Tall and Round pea Ratio

b) 3 Non-parental Tall and Wrinkle pea Ratio

c) 3 Parental dwarf and Wrinkle pea ratio

d) All of the above

e) Both A and B

10 / 50

10. In the case of Dihybrid Cross Linkage, the phenotype will be?

a) 3:1 ratio

b) 9:3:3:1 ratio

c) 12:3:1 ratio

d) 9:3:4 ratio

11 / 50

11. A phenotype with a 9:3:3:1 ratio is changed into a 12:3:1 phenotype. This is an example of?

a) Recessive Epistasis

b) Co-dominance

c) Partial dominance

d) Dominant epistasis

12 / 50

12. Inheritance in which only parental types appear, it will be which linkage?

a) Partial linkage

b) Complete linkage

c) No linkage occurred

d) One-third linkage

13 / 50

13. In test cross, we find?

a) F1 generation homozygosity or heterozygosity

b) F2 generation homozygosity or heterozygosity

c) F1 generation homozygosity only

d) F2 generation homozygosity only

14 / 50

14. A child with AB group Blood type might have a mother with which genotype of blood?

a) A blood group

b) A and B blood group

c) O negative blood group

d) Ai, Bi, AB, and O blood group is possible

e) Ai, Bi, AB, AA, and BB blood group is possible

15 / 50

15. A woman with a carrier of Deuteranopia marries a man with Deuteranopia, what will be the chances of having a colorblind Deuteranopian offspring?

a) 25%

b) 50%

c) 33.3%

d) 75%

e) 100%

16 / 50

16. ABO blood group is controlled by how many genes or alleles?

a) 4 genes

b) 3 genes

c) 3 alleles

d) 4 alleles

17 / 50

17. Which blood group type is the universal donor?

a) AB+

b) AB-

c) O+

d) O-

18 / 50

18. A person with AB+ Blood group will have which antibodies in his blood?

a) A antibodies

b) B antibodies

c) No antibodies of A and B antigen

d) Both A and B

19 / 50

19. In Incomplete dominance, which will occur in 4 o'clock flower colour?

a) They express Equally

b) Blending occurs

c) New phenotype produced by Blending

d) Alleles do not mask each other

e) All of the above

20 / 50

20. Which properties of Co-Dominance differ from Incomplete dominance?

a) Blending occurs

b) Both express Unequally

c) Traits express independently

d) A and B

e) B and C

21 / 50

21. Female Drosophila have how many pairs of chromosomes in her egg?

a) Four pairs of chromosomes

b) Two pairs of chromosomes

c) Three pairs of chromosomes

d) 23 pairs of chromosomes

22 / 50

22. Two sperms of Grasshopper males may have?

a) 12 pair chromosomes

b) 11 pair chromosomes

c) Both can be possible, 11 and 12 pair chromosomes be possible

d) 13 chromosomes

23 / 50

23. Cone neurons have specific light-absorbing proteins known as?

a) Rods

b) Cones

c) Opsins

d) Alanine

24 / 50

24. Which of the following are known as Sex-Influenced Traits?

a) Sex Link traits influenced by the sex of the organism

b) Autosomal Traits influenced by the sex of the organism

c) Can be both A and B

d) X and Y linkage inheritance

25 / 50

25. Baldness in Males is an accurate example of which inheritance?

a) Co-dominance

b) Co-dominance

c) X and Y linkage

d) Sex-influenced trait

26 / 50

26. Bobbed gene of Drosophila is an example of?

a) X Y linkage

b) Pseudoautosomal

c) Dominant chromosomal

d) A and B

27 / 50

27. Female Grasshopper will have how many pairs of chromosomes in her egg and somatic cell?

a) 11 and 12

b) 12 and 11

c) 12 and 12

d) 11 and 11

28 / 50

28. If a man has blood group AB marries a woman with blood group B whose father was Type O, what phenotype could their children have?

a) A and B type

b) A and O type

c) A, AB, and B type

d) O only

29 / 50

29. Flower colour of 4 o'clock is an example of?

a) Epistasis

b) Codominance

c) Incomplete dominance

d) Dominant Gene

30 / 50

30. Which of the following is not polygenic Inheritance?

a) Eye colour

b) Height

c) Skin colour

d) Blood group

31 / 50

31. Color of wheat is controlled by how many pairs of genes?

a) three pairs of genes

b) three to five pairs of genes

c) three to six pairs of genes

d) one pair of gene

32 / 50

32. A human with DD alleles will have ___ complexion?

a) Very Light

b) Light

c) Brown

d) Very Dark

33 / 50

33. In epistasis, the masked gene is?

a) Holandric gene

b) Hypostatic gene

c) Dominant gene

d) B and C

34 / 50

34. Which properties should antiserum have?

a) It contains antigens with blood serum

b) It contains antigens with white blood cells

c) It contains blood serum with antibodies

d) None of these

35 / 50

35. X and Y linkage genes are known as?

a) Holandric Genes

b) Pseudoautosomal

c) True Autosomal

d) Hemophilic genes

36 / 50

36. Which is true about Muscular Dystrophy?

a) Only male carriers survive

b) Only male and female carriers survive

c) Only female carriers survive

d) None of them will survive

37 / 50

37. Which of the following is true about people with Secretor gene?

a) They have recessive Se gene on Chromosome 19

b) They have A and B antibodies in their saliva

c) They can heal the wounds by licking

d) All of these are incorrect

38 / 50

38. What will be the chances of the 3rd offspring having MN-type blood when Father was M type and mother was N type Blood group?

a) 33.3%

b) 50%

c) 100%

d) 75%

39 / 50

39. Absence of Dystrophin causes?

a) Potassium leakage into cell

b) Calcium leakage into cell

c) Sodium leakage into cell

d) Both B and C

40 / 50

40. T.H. Morgan crossed mutant white-eye males with female red-eye wild type, and the results were?

a) F1 Gen: All white Offsprings

b) F2 Gen: All female offspring were red-eye

c) F1 Gen: All red-eye offsprings, both male and female

d) B and C

41 / 50

41. Rett syndrome, also known as Rickets, is an example of?

a) Y-link Recessive Inheritance

b) Y-link Dominant Inheritance

c) X-link Dominant Inheritance

d) X-link Recessive Inheritance

42 / 50

42. Which of the following is true about Y-Link inheritance?

a) it's known as Holandric traits

b) Y-linked genes are heterozygous

c) Genes on Y-link are located on the homologous region of chromosome

d) example of Y-linked genes is enlarged breasts of females

e) both A and D

43 / 50

43. Pairing of homologous chromosomes is called?

a) Diakinesis

b) Synapsis

c) Crossing overCrossing over

d) Chromosis

44 / 50

44. Protanopia, Deuteranopia, and Tritanopia cause which colorblindness respectively?

a) Red, Violate, Green

b) Red, Violet, Blue

c) Red, Blue, Green

d) Red, Green, Blue

45 / 50

45. Protanopia, Deuteranopia, and Tritanopia colorblindness are examples of?

a) monochromacy

b) dichromacy

c) trichromacy

d) all of the above, depending on the colorblindness which they have

46 / 50

46. Which of the following is not true about Hemophilia?

a) inherited in a zigzag manner

b) Hemophilic C is equally spread in males and females in the population

c) Hemophilic C is sex-linked inheritance

d) hemophilia A and B are X-linked

47 / 50

47. True Colorblindness is?

a) monochromacy

b) dichromacy

c) trichromacy

d) all of the above, depending upon the absence of opsins and rod proteins in the eye

48 / 50

48. When one trait is controlled by more than one pair of alleles, the phenomenon will be called?

a) Pleiotropy Inheritance

b) Hemophilic inheritance

c) Polygenic Inheritance

d) Co-dominance

49 / 50

49. Which of the following is not a component of the Law of Segregation?

a) each gamete contains one factor for each trait

b) an individual contains two factors for each trait

c) an individual contains one factor for each trait

d) an individual contains both factors of each trait

50 / 50

50. Human Skin Color is Controlled by how many Pairs of Genes?

a) three pairs of genes

b) three to five pairs of genes

c) three to six pairs of genes

d) one pair of genes

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Instructions for Genetics/Inheritance Online Test Mdcat-2024:

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