Q. Rain water helps to increase the ____ to some extent.

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Q. Number of chromosomes in Down's syndrome is

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Q. Plants are killed in winter by frost

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Q. One of the following is most suitable for study of mutations

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Q. Pulses are a good source of

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Q. Oxygen in our blood is transported by a protein named

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Q. Nymph is the name of young one of

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Q. One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?

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Q. Plants that grow under average temperature and moisture are called

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Q. Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of

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Q. Mutation is

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Q. Pollination by wind is called

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Q. Pollen grains in plants are produced in

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Q. Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?

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Q. Ptyalin is an enzyme produced in the

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Q. Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

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Q. Sugar chondroitin sulfate is primarily made up of

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Q. Development of blood cells take place in the

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Q. Hormone released by bones which contributes in regulation of fat deposition and glucose is classified as

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Q. Process of formation of all the cellular components of blood is

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