1. 2n + 1 is:
a. Nullisomic
b. Trisomic
c. Tetrasomic
d. Monosomic
Correct Option: d
2. 2n + 2 is:
a. Tetrasomic
b. Nullisomic
c. Monosomic
d. None of these
Correct Option: a
3. 2n —0 is:
a. Monosomic
b. Trisomic
c. Tetrasomic
d. Nullisomic
Correct Option: d
4. A pea plant that is heterozygous for two traits is called a
a. Hybrid
b. Dihybrid
c. Trihybrid
d. None of these
Correct Option: a
5. Anticodons are present on:
a. tRNA
b. mRNA
c. rRNA
d. None of these
Correct Option: a
6. Cell divides during:
a. G1 phase
b. G2
c. S
d. M phase
Correct Option: d
7. Cenozoic period is known as period of…….
a. Fishes
b. Mammals
c. Mammals
d. Amphibians
Correct Option: c
8. Charismata dissolve in:
a. Leptotene
b. Diplotene
c. Pachytene
d. Diakinesis
Correct Option: d
9. Codes are present on:
a. mRNA
b. tRNA
c. rRNA
d. None of these
Correct Option: a
10. Comparative anatomy was studied by:
a. Darwin
b. Lamarck
c. Wallace
d. Buffon
Correct Option: d
11. Darwin returned in England in….
a. 1946
b. 1836
c. 1936
d. 1846
Correct Option: b
12. Devonian period is called period of…..
a. Amphibians
b. Fishes
c. Reptiles
d. Fishes
Correct Option: d
13. DNA true replicating enzyme is:
a. Primase
b. Helicase
c. DNA polymerase II
d. Ligase
Correct Option: c
14. Galapagos is named on:
a. Finches
b. Lion
c. Snake
d. Tortoise
Correct Option: d
15. Genetic drift is most powerful in
a. Changing environment
b. Small population
c. Large population
d. Stable environment
Correct Option: b
16. 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 Option: a
17. In semi-conservativt model the strands separated and acts as:
a. Fingerprints
b. Model
c. Enzyme
d. gene
Correct Option: b
18. Initiation codon is
a. GUC
b. AUG
c. UAA
d. UAG
Correct Option: b
19. Jurassic period is called golden age of…..
a. Fishes
b. Mammals
c. Reptiles
d. Amphibians
Correct Option: c
20. Lamarck published his theory in
a. 1805
b. 1802
c. 1803
d. 1804
Correct Option: b
21. mRNA is synthesized by:
a. Ligase
b. Helicase
c. RNA polymerase II
d. RNA polymerase I
Correct Option: c
22. North America is present in the region:
a. Oriental
b. Neotropical
c. Nearctic
d. Ethiopian
Correct Option: c
23. Okazaki fragment is a:
a. Enzyme
b. RNA
c. DNA
d. Protein
Correct Option: b
24. Okazaki fragments are synthesize by:
a. Ligase
b. Primase
c. DNA Polymerase II
d. None of these
Correct Option: a
25. On the Origin Species by Means of Natural Selection was published in:
a. 1877
b. 1859
c. 1867
d. 1876
Correct Option: b
26. Peptide bond is formed on….
a. P site
b. A site
c. E site
d. None of these
Correct Option: a
27. Principics of geology was the book of:
a. Darwin
b. Lamarck
c. Lyell
d. Wallace
Correct Option: c
28. The age of Darwin at the end of the voyage was:
a. 26
b. 27
c. 25
d. 24
Correct Option: c
29. The centromere is a specific DNA sequence of about number of nucleotides.
a. 240
b. 260
c. 220
d. 230
Correct Option: c
30. The DNA polymerase only add nucleotide to the end:
a. 3
b. 5
c. 4
d. None of these
Correct Option: a
31. The enzyme which play a supporting role in DNA replication is:
a. Primase
b. Helicase
c. DNA polymerase II
d. Ligase
Correct Option: c
32. The gametes of F2 are formed in ratio:
a. 0.25416666667
b. 0.042361111111
c. 0.12569444444
d. 0.37569444444
Correct Option: c
33. The helix has a uniform width of…
a. 5nm
b. 2nm
c. 3nm
d. 4nm
Correct Option: b
34. The length of Okazaki fragments is:
a. 500-600 nucleotide
b. 100-200 nucleotide
c. 200-300 nucleotide
d. 300-400 nuceotide
Correct Option: b
35. 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 Option: a
36. The semi conservative model of DNA was proved by:
a. Lamarck
b. Lyell
c. Meselson – Stahl
d. Darwin
Correct Option: c
37. The strand which is transcribed during transcription is:
a. anti sense strand
b. Lagging strand
c. Leading strand
d. sense strand
Correct Option: b
38. The strands in which elongates towards replication fork is:
a. Leading strand
b. Lagging strand
c. antisense strand
d. None of these
Correct Option: a
39. The synthesis of protein is called:
a. Translation
b. Replication
c. Transcription
d. None of these
Correct Option: a
40. The synthesis of RNA from DNA is:
a. Transcription
b. Translation
c. Replication
d. None of these
Correct Option: a
41. The theory of acquired characters was put forward by:
a. Buffon
b. Lamarck
c. Darwin
d. Wallace
Correct Option: b
42. Transcription starts at:
a. Promotor
b. Operator
c. Enhancer
d. None of these
Correct Option: a
43. When tall is crossed with dwarf, F1 gives tall, it is:
a. Hybrid
b. Dominant
c. Recesive
d. None of these
Correct Option: a
44. Which of the following conditions can result in evolution in a population?
a. Random mating
b. No mutations
c. no natural selection
d. None of these
Correct Option: a
45. Which of the following proteins is absent is in nucleosome?
a. H2B
b. H4
c. H1
d. H2A
Correct Option: c
46. Which of the followings is linker protein?
a. H2B
b. H4
c. H1
d. H2A
Correct Option: c
47. Which of the followings should be large for Hardy Weinberg theorem:
a. Mutation
b. Migration
c. Population
d. gene
Correct Option: c
48. XO system is found in:
a. Earthworm
b. Protenor
c. man
d. Birds
Correct Option: b
49. XY system is found in:
a. Birds
b. Man
c. Protenor
d. Man
Correct Option: d
50. ZW system is found in:
a. man
b. Birds
c. Protenor
d. Birds
Correct Option: d
