Biology - MOST IMPORTANT UPSC CSE Previous Year Questions

The theory of ‘jumping genes' was propounded by:

Camel uses its hump for:

Poison glands of snakes are homologous to:

Which one of the following seeds can benefit a patient of diabetes mellitus by normalizing his blood sugar level?

Hemophilia is a hereditary disease carried by :

If a mouse of over eight times its normal size has been produced by introducing human growth hormone gene, the technique involved is called:

Match List I with List II and select the correct answer using the codes given below the lists: List I (Characteristics) A. Wingless insect B. Flightless bird C. Limbless reptile D. Limbless animal List II (Animal) 1. Kiwi 2. Silver fish 3. Turtle 4. Snake 5. Fish

Three communicable diseases prevalent in developing countries caused by unsafe drinking water and bad sanitation are:

Scratching eases itching because:

The blood pressure values of four persons are given below: 1. Mrs. X : 90/60 2. Mr. X : 160/120 3. Mr. Y: 120/80 4. Mrs. Y: 140/100 Who among the following has normal blood pressure?

A fertile soil, suitable for growing common crops, is likely to have a pH value of:

Sucrose content in sugarcane decreases:

Sugarcane, sugarbeet, sweetpea, chickpea, pigeonpea and French bean belong to:

Biofilms are:

Which one of the following approaches comes under the category of biotechnology?

Which one of the following crops enriches the nitrogen content in soil ?

The heart of human embryo starts beating

If father has blood group A and mother has blood group O, then which one of the following blood group may be found in their son ?

What is the correct sequence of the following in a heart attack? 1. Narrowing of the inner orifice of the vessel 2. 'Plaque' from fibrous tissue and high cholesterol 3. Inadequate supply of blood and oxygen 4. Clots of blood carried into the coronary arteries.

In the case of a Test tube baby'