PRINCIPLES OF ANIMAL LIFE II

1. Charismata dissolve in:

a. Leptotene

b. Diplotene

c. Pachytene

d. Diakinesis

Correct Answer: d

2. Cell divides during:

a. G2

b. S

c. M phase

d. G1 phase

Correct Answer: c

3. The centromere is a specific DNA sequence of about number of nucleotides.

a. 230

b. 240

c. 260

d. 220

Correct Answer: d

4. The natural selection in which individuals of the most commons phenotypes are at disadvantage is called:

a. Disruptive

b. Stabilizung

c. Directional

d. None of these

Correct Answer: a

5. Which of the followings should be large for Hardy Weinberg theorem:

a. Mutation

b. Migration

c. Population

d. gene

Correct Answer: c

6. Peptide bond is formed on….

a. E site

b. None of these

c. P site

d. A site

Correct Answer: c

7. Which of the following conditions can result in evolution in a population?

a. None of these

b. Random mating

c. No mutations

d. no natural selection

Correct Answer: b

8. Genetic drift is most powerful in

a. Changing environment

b. Small population

c. Large population

d. Stable environment

Correct Answer: b

9. A pea plant that is heterozygous for two traits is called a

a. Hybrid

b. Dihybrid

c. Trihybrid

d. None of these

Correct Answer: a

10. When tall is crossed with dwarf, F1 gives tall, it is:

a. Hybrid

b. Dominant

c. Recesive

d. None of these

Correct Answer: a

11. If test cross gives all dominant characters it means the parent is:

a. Homozygote dominant

b. heterozygous

c. Homozygous recessive

d. None of these

Correct Answer: a

12. The gametes of F2 are formed in ratio:

a. 0.37569444444

b. 0.25416666667

c. 0.042361111111

d. 0.12569444444

Correct Answer: d

13. Jurassic period is called golden age of…..

a. Mammals

b. Reptiles

c. Amphibians

d. Fishes

Correct Answer: b

14. Devonian period is called period of…..

a. Fishes

b. Amphibians

c. Fishes

d. Reptiles

Correct Answer: a

15. Cenozoic period is known as period of…….

a. Fishes

b. Mammals

c. Mammals

d. Amphibians

Correct Answer: c

16. Darwin returned in England in….

a. 1936

b. 1846

c. 1946

d. 1836

Correct Answer: d

17. Comparative anatomy was studied by:

a. Darwin

b. Lamarck

c. Wallace

d. Buffon

Correct Answer: d

18. The theory of acquired characters was put forward by:

a. Lamarck

b. Darwin

c. Wallace

d. Buffon

Correct Answer: a

19. Lamarck published his theory in

a. 1803

b. 1804

c. 1805

d. 1802

Correct Answer: d

20. The age of Darwin at the end of the voyage was:

a. 24

b. 26

c. 27

d. 25

Correct Answer: d

21. On the Origin Species by Means of Natural Selection was published in:

a. 1867

b. 1876

c. 1877

d. 1859

Correct Answer: d

22. Principics of geology was the book of:

a. Darwin

b. Lamarck

c. Lyell

d. Wallace

Correct Answer: c

23. Galapagos is named on:

a. Snake

b. Tortoise

c. Finches

d. Lion

Correct Answer: b

24. Which of the followings is linker protein?

a. H1

b. H2A

c. H2B

d. H4

Correct Answer: a

25. Which of the following proteins is absent is in nucleosome?

a. H1

b. H2A

c. H2B

d. H4

Correct Answer: a

26. XO system is found in:

a. Earthworm

b. Protenor

c. man

d. Birds

Correct Answer: b

27. ZW system is found in:

a. man

b. Birds

c. Protenor

d. Birds

Correct Answer: d

28. XY system is found in:

a. Man

b. Protenor

c. Man

d. Birds

Correct Answer: c

29. 2n —0 is:

a. Trisomic

b. Tetrasomic

c. Nullisomic

d. Monosomic

Correct Answer: c

30. 2n + 1 is:

a. Trisomic

b. Tetrasomic

c. Monosomic

d. Nullisomic

Correct Answer: c

31. 2n + 2 is:

a. None of these

b. Tetrasomic

c. Nullisomic

d. Monosomic

Correct Answer: b

32. In semi-conservativt model the strands separated and acts as:

a. gene

b. Fingerprints

c. Model

d. Enzyme

Correct Answer: c

33. The semi conservative model of DNA was proved by:

a. Lamarck

b. Lyell

c. Meselson – Stahl

d. Darwin

Correct Answer: c

34. Initiation codon is

a. UAA

b. UAG

c. GUC

d. AUG

Correct Answer: d

35. DNA true replicating enzyme is:

a. DNA polymerase II

b. Ligase

c. Primase

d. Helicase

Correct Answer: a

36. The enzyme which play a supporting role in DNA replication is:

a. DNA polymerase II

b. Ligase

c. Primase

d. Helicase

Correct Answer: a

37. The DNA polymerase only add nucleotide to the end:

a. 5

b. 4

c. None of these

d. 3

Correct Answer: d

38. The strands in which elongates towards replication fork is:

a. Leading strand

b. Lagging strand

c. antisense strand

d. None of these

Correct Answer: a

39. The length of Okazaki fragments is:

a. 200-300 nucleotide

b. 300-400 nuceotide

c. 500-600 nucleotide

d. 100-200 nucleotide

Correct Answer: d

40. Okazaki fragment is a:

a. Enzyme

b. RNA

c. DNA

d. Protein

Correct Answer: b

41. Okazaki fragments are synthesize by:

a. Ligase

b. Primase

c. DNA Polymerase II

d. None of these

Correct Answer: a

42. The synthesis of protein is called:

a. None of these

b. Translation

c. Replication

d. Transcription

Correct Answer: b

43. The synthesis of RNA from DNA is:

a. None of these

b. Transcription

c. Translation

d. Replication

Correct Answer: b

44. Anticodons are present on:

a. None of these

b. tRNA

c. mRNA

d. rRNA

Correct Answer: b

45. Codes are present on:

a. rRNA

b. None of these

c. mRNA

d. tRNA

Correct Answer: c

46. The strand which is transcribed during transcription is:

a. Lagging strand

b. Leading strand

c. sense strand

d. anti sense strand

Correct Answer: a

47. mRNA is synthesized by:

a. Helicase

b. RNA polymerase II

c. RNA polymerase I

d. Ligase

Correct Answer: b

48. Transcription starts at:

a. Enhancer

b. None of these

c. Promotor

d. Operator

Correct Answer: c

49. North America is present in the region:

a. Oriental

b. Neotropical

c. Nearctic

d. Ethiopian

Correct Answer: c

50. The helix has a uniform width of…

a. 3nm

b. 4nm

c. 5nm

d. 2nm

Correct Answer: d