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Genetic And Mendel S Law Of Heredity Quiz 1 (60 MCQs)

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1. In a gamete there will be.
2. Genes control heredity in man and other organisms.This is.
3. In all of the Mendel, s experiments the alleles causing a trait were.
4. Which is the correct chronological order? (A) Mendel, s laws of inheritance (B) Darwin, s theory of evolution (C) Blood circulation by Harvey (D) De Vries theory of mutation
5. Sugar present in the nucleotides is.
6. There are 23 pairs of chromosomes in man, How many types of eggs can woman produce supposing that she is Heterozygous for each of her 23 pairs of chromosomes?
7. The genotypic ratio in the F2 generation in a monohybrid cross will be.
8. When tall Red plant is crossed with dwarf white plant, the F2 generation tall red and dwarf white will occur in the ratio of.
9. If a mouse over eight times of its normal size has been produced by introducing human growth hormone gene, the technique involved is called.
10. A pair of chromosomes determines sex in human beings and, therefore these chromosomes are called sex chromosomes What is the name given to the other chromosomes?
11. If a boy, s father has haemophilia and his mother has one gene for it, what is the chance that the boy will inherit the disease?
12. Law of Independent Assortment
13. Law of Segregation
14. A lot of information about linkage in genetics has been obtained by researches on the organism.
15. Genes are made of.
16. An organism that breeds true for a particular character producing identical gametes is called.
17. Which of the following human disease/s is/are hereditary in nature?
18. Linked genes are present in.
19. The number of chromosomes in Turner, s Syndrome is.
20. That genes control heredity through their control on enzymes synthesis and that one gene controls the synthesis of one enzyme ..... the, one gene one enzyme hypothesis ..... was proposed by.
21. Hereditary characters are carried to the next generation by.
22. Haploid chromosome number is not seen in.
23. Consider the following discoveries in life sciences. 1. Principal 2. Nucleus 3. DNA as the genetic material 4. Light essential for the photosynthesis The correct chronological sequence of these discoveries is.
24. Gene, the basic unit of heredity, was first synthesized in the laboratory by.
25. Mutation may cause.
26. The theory of jumping genes was propounded by.
27. During protein synthesis a particular kind of RNA acts as an intermediary between DNA and ribosomes.This is.
28. The new techniques developed during the last few years have made it possible to produce an intergeneric hybrid between potato and tomato, the pomato through.
29. Mutation cannot be caused by one of the following.
30. The molecules responsible for storing the genetic code are.
31. The sex of a child is determined by the.
32. An exception to Mendel, s Laws is.
33. Who, amongst the following is regarded as the father of genetics?
34. A test cross is one which is made to determine the.
35. Tijo and Levan found out.
36. What is the chromosomes number in a human ovum?
37. Organisms which have similar external appearance with reference to a particular character are called.
38. A gene which fails to express in the presence of non-allelic genes is.
39. A colur blind man is married to a normal visioned woman whose parents also had normal vision What proportion of their Children is likely to be colour blind?
40. What is epistasis?
41. One inherited haploid set of chromosomes is called.
42. Which fungus was of great use in finding out genetic principles?
43. Eugenics is the application of genetics to improve.
44. An inherited characteristic which does not appear in one generation but can appear in the next is called.
45. A white woman marries a black man.They have four children-2 sons and 2 daughters What proportion of these children is likely to be black?
46. How many alleles in a given gene are possible?
47. What are oncogenes?
48. The suggestion that the chromosomes are the carriers of hereditary material was first made by.
49. In human beings, sex is determined by the sex chromosomes X and Y. What would, then be the genetic constitution of a normal woman?
50. Rate of mutation can be increased by.
51. Normal monohybrid cross yields in the F2 generation, a ratio of 3:1 In some cases the ratio is found to be 2:1 Itis due to.
52. Body cells infected with virus produce a protein called.
53. A colour blind person commonly has difficulty in seeing.
54. Who coined the term gene?
55. In which one of the following is sex determined by environment?
56. External manifestation of characters helps one to identify only the.
57. Genes are arranged in the chromosomes.
58. Which of the following fungi has been extensively used for genetical studies?
59. Which one of the following Laws of Mendel could be arrived at only by a dihybrid cross.
60. When two organisms are crossed with a view to study only one of their characters it is called.
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