1.2n + 1 is:
a. Nullisomic
b. Trisomic
c. Tetrasomic
d. Monosomic
Correct Answer: d
2.2n + 2 is:
a. Tetrasomic
b. Nullisomic
c. Monosomic
d. None of these
Correct Answer: a
3.2n —0 is:
a. Monosomic
b. Trisomic
c. Tetrasomic
d. Nullisomic
Correct Answer: 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 Answer: a
5.Anticodons are present on:
a. tRNA
b. mRNA
c. rRNA
d. None of these
Correct Answer: a
6.Cell divides during:
a. G1 phase
b. G2
c. S
d. M phase
Correct Answer: d
7.Cenozoic period is known as period of…….
a. Fishes
b. Mammals
c. Mammals
d. Amphibians
Correct Answer: c
8.Charismata dissolve in:
a. Leptotene
b. Diplotene
c. Pachytene
d. Diakinesis
Correct Answer: d
9.Codes are present on:
a. mRNA
b. tRNA
c. rRNA
d. None of these
Correct Answer: a
10.Comparative anatomy was studied by:
a. Darwin
b. Lamarck
c. Wallace
d. Buffon
Correct Answer: d
11.Darwin returned in England in….
a. 1946
b. 1836
c. 1936
d. 1846
Correct Answer: b
12.Devonian period is called period of…..
a. Amphibians
b. Fishes
c. Reptiles
d. Fishes
Correct Answer: d
13.DNA true replicating enzyme is:
a. Primase
b. Helicase
c. DNA polymerase II
d. Ligase
Correct Answer: c
14.Galapagos is named on:
a. Finches
b. Lion
c. Snake
d. Tortoise
Correct Answer: d
15.Genetic drift is most powerful in
a. Changing environment
b. Small population
c. Large population
d. Stable environment
Correct Answer: 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 Answer: a
17.In semi-conservativt model the strands separated and acts as:
a. Fingerprints
b. Model
c. Enzyme
d. gene
Correct Answer: b
18.Initiation codon is
a. GUC
b. AUG
c. UAA
d. UAG
Correct Answer: b
19.Jurassic period is called golden age of…..
a. Fishes
b. Mammals
c. Reptiles
d. Amphibians
Correct Answer: c
20.Lamarck published his theory in
a. 1805
b. 1802
c. 1803
d. 1804
Correct Answer: b
21.mRNA is synthesized by:
a. Ligase
b. Helicase
c. RNA polymerase II
d. RNA polymerase I
Correct Answer: c
22.North America is present in the region:
a. Oriental
b. Neotropical
c. Nearctic
d. Ethiopian
Correct Answer: c
23.Okazaki fragment is a:
a. Enzyme
b. RNA
c. DNA
d. Protein
Correct Answer: b
24.Okazaki fragments are synthesize by:
a. Ligase
b. Primase
c. DNA Polymerase II
d. None of these
Correct Answer: a
25.On the Origin Species by Means of Natural Selection was published in:
a. 1877
b. 1859
c. 1867
d. 1876
Correct Answer: b
26.Peptide bond is formed on….
a. P site
b. A site
c. E site
d. None of these
Correct Answer: a
27.Principics of geology was the book of:
a. Darwin
b. Lamarck
c. Lyell
d. Wallace
Correct Answer: c
28.The age of Darwin at the end of the voyage was:
a. 26
b. 27
c. 25
d. 24
Correct Answer: c
29.The centromere is a specific DNA sequence of about number of nucleotides.
a. 240
b. 260
c. 220
d. 230
Correct Answer: c
30.The DNA polymerase only add nucleotide to the end:
a. 3
b. 5
c. 4
d. None of these
Correct Answer: a
31.The enzyme which play a supporting role in DNA replication is:
a. Primase
b. Helicase
c. DNA polymerase II
d. Ligase
Correct Answer: c
32.The gametes of F2 are formed in ratio:
a. 0.25416666667
b. 0.042361111111
c. 0.12569444444
d. 0.37569444444
Correct Answer: c
33.The helix has a uniform width of…
a. 5nm
b. 2nm
c. 3nm
d. 4nm
Correct Answer: 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 Answer: 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 Answer: a
36.The semi conservative model of DNA was proved by:
a. Lamarck
b. Lyell
c. Meselson – Stahl
d. Darwin
Correct Answer: c
37.The strand which is transcribed during transcription is:
a. anti sense strand
b. Lagging strand
c. Leading strand
d. sense strand
Correct Answer: 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 Answer: a
39.The synthesis of protein is called:
a. Translation
b. Replication
c. Transcription
d. None of these
Correct Answer: a
40.The synthesis of RNA from DNA is:
a. Transcription
b. Translation
c. Replication
d. None of these
Correct Answer: a
41.The theory of acquired characters was put forward by:
a. Buffon
b. Lamarck
c. Darwin
d. Wallace
Correct Answer: b
42.Transcription starts at:
a. Promotor
b. Operator
c. Enhancer
d. None of these
Correct Answer: a
43.When tall is crossed with dwarf, F1 gives tall, it is:
a. Hybrid
b. Dominant
c. Recesive
d. None of these
Correct Answer: 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 Answer: a
45.Which of the following proteins is absent is in nucleosome?
a. H2B
b. H4
c. H1
d. H2A
Correct Answer: c
46.Which of the followings is linker protein?
a. H2B
b. H4
c. H1
d. H2A
Correct Answer: c
47.Which of the followings should be large for Hardy Weinberg theorem:
a. Mutation
b. Migration
c. Population
d. gene
Correct Answer: c
48.XO system is found in:
a. Earthworm
b. Protenor
c. man
d. Birds
Correct Answer: b
49.XY system is found in:
a. Birds
b. Man
c. Protenor
d. Man
Correct Answer: d
50.ZW system is found in:
a. man
b. Birds
c. Protenor
d. Birds
Correct Answer: d