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