| 1 |
In a phospholipid molecule, phosphoric acid is attached to the carbon number_____ of glycerol. |
1
2
3
4
|
| 2 |
The Organic biomolecule which is widespread in bacterial animal and plant cells is |
Wax
Glucose
Acyl glycerol
Phospholipids
|
| 3 |
Glyosidic bond is formed by the |
Removal of Oxygen
Addition of Water
Addition of Oxygen
Removal of Water
|
| 4 |
What is done to monkeys by HIV |
Multiplication and disease
<span style="white-space: normal;">Infection and multiplication</span>
Infection and disease
None
|
| 5 |
It is not a symptom of AIDS |
Swollen lymph nodes
Loss of immunity
Swollen neck
Pneumonia
|
| 6 |
Structural proteins of HIV are |
Encoded by virus genes
Synthesized by host ribosomes
Digested by viral enzymes
All of these
|
| 7 |
Which of the following is not an enzyme of HIV |
Reverse transcriptase
Integerase<span style="white-space:pre"> </span>
Protease<span style="white-space:pre"> </span>
Ligase
|
| 8 |
Newly synthesized Large proteins are digested into small viral proteins by |
Host protease
Viral protease
Viral RT
Host pepsin
|
| 9 |
Joining of viral DNA with host DNA is carried out by |
Integerase
Ligase
Both<span style="white-space:pre"> </span>
Polymerse
|
| 10 |
Herpes type-1 virus causes |
Pitted scars
Swollen neck
Rashes on genitals
Vascular lesions
|
| 11 |
Which of the following part of virus does not enter into host cell |
Envelope<span style="white-space:pre"> </span>
Spikes<span style="white-space:pre"> </span>
Both<span style="white-space:pre"> </span>
Capsid
|
| 12 |
Causative agent of mysterious brain infection is composed of |
DNA+Protein
RNA+Protein
RNA only
Protein only
|
| 13 |
Which of the following is a common feature of all viruses |
DNA replication in cytoplasm
RNA synthesis in nucleus
Protein synthesis in cytoplasm
Reverse transcription in cytoplasm
|
| 14 |
HIV attaches on cell membrane of T cell at _____ receptor site |
Cd2<span style="white-space:pre"> </span>
Cd4<span style="white-space:pre"> </span>
Cd8<span style="white-space:pre"> </span>
Gp120
|
| 15 |
Crystallization of viruses was done by _____ for the first time |
Ivanowsky
Twort<span style="white-space:pre"> </span>
Stanley<span style="white-space:pre"> </span>
Robert Koch
|
| 16 |
DNA of non-virulent phage is |
Provirus<span style="white-space:pre"> </span>
Prophage<span style="white-space:pre"> </span>
Both<span style="white-space:pre"> </span>
None
|
| 17 |
Chemical nature of spikes present on HIV |
Protein<span style="white-space:pre"> </span>
Carbohydrate<span style="white-space:pre"> </span>
Glycolipid<span style="white-space:pre"> </span>
Glycoprotein
|
| 18 |
Which is irrelevant? |
Genome to virus structure
Capsomeres to Capsid
Tumors to retroviruses
Envelope to all viruses
|
| 19 |
Which of the following disease is not caused by virus? |
Cholera
Hepatitis<span style="white-space:pre"> </span>
Influenza<span style="white-space:pre"> </span>
Polio
|
| 20 |
Which type of hepatitis leads to chronic liver disease? |
Hepatitis D
Hepatitis A
Hepatitis B
Hepatitis C
|
| 21 |
An isolated virus is not considered living, since it |
Separates into two inert parts<span style="white-space:pre"> </span>
Cannot metabolize
Rapidly loses its genome
It coated with an air tight shield
|
| 22 |
Mad cow infection is caused by ____ |
Viroid<span style="white-space:pre"> </span>
Virion<span style="white-space:pre"> </span>
Prion<span style="white-space:pre"> </span>
Bacteria
|
| 23 |
Which type of hepatitis is called serum hepatitis |
Hepatitis A
Hepatitis B
Hepatitis C
Hepatitis D
|
| 24 |
In life cycle of bacteriophage, ______ occurs followed by_______. |
Assembly. Penetration
Multiplication, landing
Tail contractio, Penetration
<div>Penetration, Assembly</div><div><br></div>
|
| 25 |
Pick up the false statement regarding HIV |
Lipoprotein envelope
Two RNA molecules
Two molecules of RT enzyme
Round shaped capsid
|
| 26 |
The phage is called temperate when it causes |
Virulence<span style="white-space:pre"> </span>
Lysis
Lysogeny<span style="white-space:pre"> </span>
Bursting of host cell
|
| 27 |
The persistent symptoms of small pox are |
Raised fluid filled vesicles
The pocks<span style="white-space:pre"> </span>
Pustules
Vascular lesions
|
| 28 |
The smallest known virus is |
HIV virus
HBV virus
Influenza virus
Polio virus
|
| 29 |
Retroviruses cause tumors in |
Rodents
Fowls
Cats<span style="white-space:pre"> </span>
All
|
| 30 |
In lytic cycle, the relationship between bacterium and bacteriophages is |
Symbiotic<span style="white-space:pre"> </span>
Master-slave
Husband wife
Host-guest
|
| 31 |
Viruses containing RNA rather than DNA are called |
Riboviruses
Bacteriophages
Rotaviruses
Retroviruses
|
| 32 |
Head of T4 bacteriophage contain |
Single stranded DNA
Double stranded DNA
Single stranded RNA
Both RNA and DNA
|
| 33 |
The best known phages are T phages that infect |
Pseudomonas<span style="white-space:pre"> </span>
Mycoplasma<span style="white-space:pre"> </span>
Escherichia Coli
Salmonella
|
| 34 |
Which of the following acts as template strand for reverse transcription |
Viral DNA
Viral RNA
Host DNA
Host RNA
|
| 35 |
Major cells infected by HIV are |
Monocytes
B lymphocytes
T lymphocytes
RBC
|
| 36 |
Which of the following is a living character of virus |
Formation of Crystals
Production of new viral particles<span style="white-space:pre"> </span>
Coordination<span style="white-space:pre"> </span>
Metabolism
|
| 37 |
Choose the correct option about the following figure: |
A is showing Envelope
B is not showing envelope
C is showing RT
D is showing RNA
|
| 38 |
Patient of AIDS is susceptible to many infections due to |
Severe pneumonia
Swollen lymph nodes
Loss of immune system
All of these
|
| 39 |
If you are studying the structure of HIV , you will observe spikes associated with the |
Core<span style="white-space:pre"> </span>
Capsid<span style="white-space:pre"> </span>
Envelope<span style="white-space:pre"> </span>
Genome
|
| 40 |
Viral core always contain __ among the following |
DNA
RNA
Both A and B
Any of A or B
|
| 41 |
In HIV infection cycle, uncoating of virus takes place |
Outside the T-cell
Inside the cytoplasm of T-cell
Inside the nucleus of T-cell
Inside the mitochondria of T-cell
|
| 42 |
Provirus is |
Genome of bacteriophage
Genome of HIV uncoiled in Host cell
Genome of HIV incorporated in Host genome
Genome of a host
|
| 43 |
They are Tumor causing viruses and are usually host specific |
Polio viruses
Retroviruses<span style="white-space: pre;"> </span>
Oncoviruses
Both b and c
|
| 44 |
Viruses are not resistant to |
Interferons
Penicillin<span style="white-space:pre"> </span>
Streptomycin
Any antibiotic
|
| 45 |
Which type of nucleic acid is found in the capsid of HIV |
RNA
DNA
ssDNA
None
|
| 46 |
Genome of the acellular particle mainly comprised of |
Protein
Sugars
Lipid
Nucleic acid
|
| 47 |
Which of the following virus is DNA enveloped |
Polio virus
Hepatitis B virus
HIV
Measles virus
|
| 48 |
Example of a virus having tadpole shape consisted of head and tail |
Bacteriophage
Polio virus<span style="white-space:pre"> </span>
HIV<span style="white-space:pre"> </span>
HV
|
| 49 |
The particles which do not contain any nucleic acid are |
Viruses
Prions
Viroids<span style="white-space:pre"> </span>
All
|
| 50 |
Viruses reproduce through a process |
Binary fission
Replication
Both a and b
Transformation
|
| 51 |
Isosahedral viruses usually have ___ |
10 faces
20 faces
15 faces
5 faces
|
| 52 |
Vaccine for___ is under trial administration |
Hep A
Polio
Measles
AIDS
|
| 53 |
Virus without envelope is |
HIV
Hepatitis B
Polio virus
Hepatatis C
|
| 54 |
The processes that have transformed life an earth form its earliest forms to the vast diversity that we observe today, are collectively referred as : |
Evolution
Succession
Revolution
All of above
|
| 55 |
Allele for whiteness in Drosophila is : |
Recessive
Codominant
Dominant
Partially Dominant
|
| 56 |
Normal fruit flies have : |
White eyes
Bright red eyes
Light red eyes
Black eyes
|
| 57 |
Tritanopia is blindness of : |
Red Colour
Green Colour
Blue Colour
Pink Colour
|
| 58 |
X and Y linked genes are also called as : |
Sex genes
Dominant genes
Autosomal genes
Pseudoautosomal genes
|
| 59 |
All chromosomes other than sex chromosomes are called : |
Linked chromosomes
Atusomes
Autophagosommes
Dictyosomes
|
| 60 |
An exchange of segments between non-sister chromatids of homologous chromosomes during meiosis is termed as : |
Crossing over
Hopping
Taking over
Segregation
|
| 61 |
Rh factor or antigen was first studied in : |
Man
Owl
Monkey
Fish
|
| 62 |
Which of the following cross is carried to check the genotype fo an individuals showing a dominant phenotype ? |
Check cross
Test Cross
Criss Cross
Self Cross
|
| 63 |
The dominance relations of 4 O'clock plant can be described in terms of : |
Complete Dominance
Incomplete Dominance
Partial Dominance
Both b and c
|
| 64 |
Genetic basis of ABO blood group system was explained by: |
Landsteiner
Levine
Bernstein
Carl Correns
|
| 65 |
Armadillos, the armoured mammals live only in : |
Asia
Europe
America
Africa
|
| 66 |
Ultimate source of all changes is : |
Mutation
Genetic drift
Evolution
Migration
|
| 67 |
The idea of endosymbiont hypothesis was first proposed by: |
Lynn marguils
Wallace
Karlene Schwartz
Lamarck
|
| 68 |
The change in frequency of alleles at a locus that occurs by chance is called : |
genetic drift
genetic change
gene mutation
gene frequency
|
| 69 |
Gene pool consists of all alleles at all gene loci in all individuals of the: |
community
species
population
family
|
| 70 |
Eukaryotes are thought to hve evolved firstly about: |
1.3 billion year ago
1.5 billion year ago
1.7 billion year ago
1.2 billion year ago
|
| 71 |
Endangered plant species have been recorded to more than: |
600
400
500
300
|
| 72 |
Archaeobacteria could tolerate temperatures up to : |
140°C
120°C
95°C
70°C
|
| 73 |
Darwin collected 13 types of birds of : |
Robins
Sparrows
Kingfishers
Finches
|
| 74 |
Population is a localized group of individuals belonging to : |
same species
different species
same community
same stand
|
| 75 |
What is the risk of a colour blind child in a family when mother is colour-blind but father is normal? |
100%
75%
50%
25%
|
| 76 |
When a haemophilic carrier woman marries a normal man, who among her offspring may be affected |
all her children
all her daughter
half of her daughter
half of her sons
|
| 77 |
Which of these traits zigzags from meternal grand father through a carrier daughter to a grandson ? |
autosomal
X-linked
Y-linked
X and Y linked
|
| 78 |
Which of the following traits is not sex-linked recessive ? |
haemophilia
colour blindness
hypophosphatemic ricket
tfm syndrome
|
| 79 |
Which phenomenon reduces the chances of genetic recombination and variations among offspring ? |
linkage
crossing over
independent assortment
dominance
|
| 80 |
Which of the following traist is transmitted directly from an affected to only its sons? |
autosomal
X-linked
Y-linked
X and Y linked
|
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