Question: Why does a foul smell emanate from some ponds, tanks, etc.?
1. Pesticides and other organic chemicals reach the water body and kill off fishes, etc., living therein, causing the foul smell
2. Fertilizers used in farming reach the water body and give rise to excessive growth of aqueous plants. When these plants die, excessive growth of aqueous plants. When these plants die, excessive quantities of organic matter are collected, depleting dissolved oxygen and causing foul smell
3. Household wastes contain small quantities of mercury, cadmium, copper, zinc, etc., which pollute the water bodies, causing the death of fishes and other aquatic organisms and leading to foul smell
4. None of the above
Answer: 2
Question: Synthetic rubbers are made by polymerisation of
1.Chloroprene
2.Styrene butadiene mixture
3.Isobutylene
Select the correct answer using the above codes:
1. 1 and 3
2. 2 only
3. 1,2 and 3
4. 3 only
Answer: 3
Question: Wuchereria bancrofti is a parasite related to:
1. Certain forms of malaria
2. Gingivitis
3. Lymphatic filariasis
4. Kala-azar
Answer: 3
Question: Which of the following is NOT a viral disease?
1. Japanese encephalitis
2. Hepatitis
3. Chikungunya
4. Elephantiasis
Answer: 4
Question: Which of the following pairs is NOT correctly matched?
Enzyme:Function/Characteristic
1. Trypsin: curdles the milk protein caesin
2. Zymase: Converts sugar to alcohol
3. Pepsin: Changes proteins into peptones
4. Ptyalin: Changes starch to maltose
Answer: 1
Question: Which one of the following is likely to give the most accurate picture of cell differentiation process?
1. Genomic studies
2. Proteomic studies
3. Apoptosis studies
4. Ribozyme studies
Answer: 2
Question: Which of the following pairs is NOT correctly matched?
1. Vitamin B1 : Thiamine
2. Vitamin B2 : Riboflavin
3. Vitamin B12 : Cobalanin
4. Vitamin B6 : Ascorbic Acid
Answer: 4
Question: Jamun-fruit has purple colour due to the presence of
1. Cartene
2. Anthoxanthin
3. Anthocyanin
4. Leucoanthocyanin
Answer: 3
Question: Soya bean is rich in –
1. Proteins
2. Vitamin C
3. Vitamin D
4. Vitamin A
Answer: 4
Question: Which of the following helps in clotting of blood?
1. Plasma
2. Thrombocytes
3. Leucocytes
4. Erythrocytes
Answer: 2
Question: Night Blindness is caused due to lack of –
1. Vitamin D
2. Vitamin C
3. Vitamin E
4. Vitamin A
Answer: 4
Question: A disease widely spread worldwide, is known as –
1. Pandemic
2. Endemic
3. Epidemic
4. Sporadic
Answer: 1
Question: RNA stand for –
1. Renucleic Acid
2. Random Nitrogen Access
3. Regulated Nitrogen Activation
4. Ribonucleic Acid
Answer: 4