Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Osteoporosis is characterised by decreased bone mass and increased chances of fractures.
Reason (R): Common cause of osteoporosis is increased levels of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:
 
1. (A) is False but (R) is True.
2. Both (A) and (R) are True and (R) is the correct explanation of (A).
3. Both (A) and (R) are True but (R) is not the correct explanation of (A).
4. (A) is True but (R) is False.
Subtopic:  Disorders of Muscular and Skeletal System |
 77%
Level 2: 60%+
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A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is C6H12O6 then what is the formula for maltose ?
1. C12H24O11 2. C12H20O10
3. C12H24O12 4. C12H22O11 
Subtopic:  Carbohydrates |
 74%
Level 2: 60%+
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Regarding Meiosis, which of the statement is incorrect ?
1. Four haploid cells are formed at the end of Meiosis-II
2. There are two stage in Meiosis, Meiosis-I and II
3. DNA replication occurs in S phase of Meiosis-II
4. Pairing of homologous chromosomes and recombination occurs in Meiosis-I
Subtopic:  Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
 82%
Level 1: 80%+
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If '8' Drosophila in a laboratory population of '80' died during a week, the death rate in the population is ___________ individuals per Drosophila per week.
1. zero  2. 0.1
3. 10 4. 1.0 
Subtopic:  Population Attributes |
 83%
Level 1: 80%+
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Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A :
1. Streptococcus cerevisiae  2. Trichoderma polysporum 
3. Clostridium butylicum  4. Aspergillus niger
Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 88%
Level 1: 80%+
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In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because : 
1. Genetically engineered lymphocytes are not immortal cells.
2. Retroviral vector is introduced into these lymphocytes.
3. Gene isolated from marrow cells producing ADA is introduced into cells at embryonic stages 
4. Lymphocytes from patient's blood are grown in culture, outside the body.
 72%
Level 2: 60%+
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In the taxonomic categories which hierarchical arrangement in ascending order in correct in case of animals?
1. Kingdom, Order, Phylum, Class, Family, Genus, Species
2. Kingdom, Phylum, Class, Order, Family, Genus, Species
3. Kingdom, Class, Phylum, Family, Order, Genus, Species
4. Kingdom, Order, Class, Phylum, Family, Genus, Species 
Subtopic:  Taxonomy 2: Classification up to Genus |
 93%
Level 1: 80%+
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Give below are two statements : 
Statement I: Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide sequence. 
Statement II: Restriction endonucleases cut the DNA strand a little away from the centre of the Palindromic site.

In the light of the above statements, choose the most appropriate answer from the options given below :
1. Statement I is incorrect but Statement II is correct 
2. Both Statement I and Statement II are correct 
3. Both Statement I and Statement II are incorrect 
4. Statement I is correct but Statement II is incorrect
Subtopic:  Restriction Enzymes - Main Enzymes |
 87%
Level 1: 80%+
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Breeding crops, with higher levels of vitamins and minerals or higher proteins and healthier fats, is called :
1.Bio-accumulation 2.Bio-magnification 
3.Bio-remediation4.Bio-fortification 
 74%
Level 2: 60%+
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Tegmina in cockroach, arises from :

1. Prothorax and Mesothorax 2. Prothorax
3. Mesothorax 4. Metathorax
Subtopic:  Cockroach: Intro & External Morphology |
 73%
Level 2: 60%+
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