Q1
mcq
1 mark
A person is injured and got swelling. The swelling, due to the infection of tissue is an example of:
- A. Phagocytosis
- B. Mechanical barrier
- C. Inflammation
- D. Physiological barrier
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Q2
mcq
1 mark
The first codon to be deciphered was ____________ which codes for __________.
- A. UUU, Phenylalanine
- B. AAA, Proline
- C. TTT, Arginine
- D. GGG, Alanine
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Q3
mcq
1 mark
Find out the wrongly matched pair.
- A. Klinefelter’s Syndrome - XXY Female
- B. Down’s Syndrome - Trisomy-21
- C. Turner’s Syndrome - XO Female
- D. Patau’s Syndrome - Trisomy-13
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Q4
mcq
1 mark
The Neanderthal man had the brain capacity of:
- A. 900 cc
- B. 650-800 cc
- C. 1400 cc
- D. 1200 cc
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Q5
mcq
1 mark
Which one of the following groups includes sexually transmitted diseases caused by bacteria only?
- A. Syphilis, gonorrhoea and trichomoniasis
- B. Syphilis, gonorrhoea and candidiasis
- C. Syphilis, trichomoniasis and pediculosis
- D. Syphilis, chlamydiasis and gonorrhoea
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Q6
mcq
1 mark
ELISA is mainly used for:
- A. Selecting animals having desired traits
- B. Detection of mutations
- C. Selecting plants having desired traits
- D. Detection of pathogens
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Q7
mcq
1 mark
The most important hormone in initiating and maintaining lactation after birth is:
- A. Prolactin
- B. Oestrogen
- C. Oxytocin
- D. FSH
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Q8
mcq
1 mark
Assertion: The environmental conditions of the Tropics are favourable for speciation and diversity of organisms.
Reason: The climate seasons, temperature, humidity and photoperiod are more or less stable and congenial.
- A. Assertion is true, but Reason is false.
- B. Both Assertion and Reason are true and Reason explains Assertion correctly.
- C. Both Assertion and Reason are false.
- D. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
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Q9
mcq
1 mark
The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively?
- A. Partial Regulator, Regulator, Conformer
- B. Conformer, Regulator, Partial Regulator
- C. Regulator, Conformer, Partial Regulator
- D. Regulator, Partial Regulator, Conformer
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Q10
mcq
1 mark
The mode of sexual reproduction in bacteria is by:
- A. Conjugation
- B. Formation of gametes
- C. Zoospore formation
- D. Endospore formation
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Q11
mcq
The headquarters of the National Biodiversity Authority is situated in __________.
- A. Delhi
- B. Mumbai
- C. Kolkata
- D. Chennai
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Q12
mcq
The clusters of gene with related functions are called as _________.
- A. Recons
- B. Mutons
- C. Operons
- D. Cistrons
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Q13
mcq
Which of the following micro-organisms is used for production of citric acid in Industries ?
- A. Aspergillus niger
- B. Lactobacillus bulgaris
- C. Rhizopus nigricans
- D. Penicillium citrinum
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Q14
mcq
The ‘thickness’ of Stratospheric Ozone layer is measured in :
- A. Melson units
- B. Sieverts units
- C. Beaufort scale
- D. Dobson units
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Q15
mcq
Haemozoin is :
- A. A toxin from Plasmodium species
- B. A precursor of haemoglobin
- C. A toxin from Haemophilus species
- D. A toxin from Streptococcus
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Q17
short answer
Draw and mention the parts of a spermatozoan.
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Q18
short answer
Give any two applications of DNA finger printing.
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Q19
short answer
List out the major gases seems to be found in the primitive earth.
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Q20
short answer
Rearrange the descent in human evolution.
Australopithecus → Homo erectus → Homo sapiens → Ramapithecus → Homo habilis
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Q22
short answer
Give any two bioactive molecules produced by microbes and state their uses.
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Q25
short answer
Differentiate Fission and Fragmentation with suitable examples.
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Q26
short answer
Give the expansion for the following.
(1)Z I F T
(2)I C S I
(3)I U T
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Q27
short answer
What is criss-cross inheritance ? Give example.
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Q28
short answer
If the coding sequence in a transcription unit is written as follows :
$5'$
TGCATGCATGCATGCATGCATGCATGC $3'$
Write down the nucleotide sequence of mRNA.
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Q29
short answer
Complete the following table.
Diseases Causative agent Site of infections
Mumps
Chicken pox
Dengue fever
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Q30
short answer
What is bioremediation ? Mention their types.
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