CHEMICAL COORDINATION AND INTEGRATION 2016 MARCH 1. Hormonal abnormality is responsible for certain diseases in man. List of some diseases are given below. Write the hormone related to each of it. (2)
HUMAN HEALTH AND DISEASES 2013 MARCH 1. Most often HIV infection occurs due to conscious behavior patterns. Do you agree with this statement? Substantiate your answer. (2)
MICROBES IN HUMAN WELFARE 2013 MARCH 1. Some bioactive molecules, their source and their medical importance are given in table. Fill up the missing parts. (2)
ENVIRONMENTAL ISSUES 2010 MARCH 1. Destruction of forest leads to the increase of CO 2 in atmosphere. Recently Govt. of India instituted an award for individuals or communities from rural areas that shown ex…
ENVIRONMENTAL ISSUES 2013 MARCH NO QUESTIONS 2013 SAY 1. In a study conducted, the concentration of DDT found to increase in the successive trophic levels. The result of the study is shown below.
ORGANISMS AND POPULATIONS 2010 MARCH 1. Given below is a table which shows the interspecific interaction. ‘+’ sign indicates beneficial, ‘-‘ sign indicates detrimental and ‘0’ indicates neutral.
BIOTECHNOLOGY AND ITS APPLICATIONS 2016 MARCH 1. The recombinant DNA technological process has made immense impact in the area of healthcare. How Eli Lilly produced Insulin? (Scores: 2)
BIOTECHNOLOGY- PRINCIPLES AND PROCESSES 2010 MARCH 1. Raju is searching blight resistant plants for his crossing experiments. Unfortunately no such varieties are available.
BIOTECHNOLOGY- PRINCIPLES AND PROCESSES 2013 MARCH 1. Jaya read in a Biotechnology book that alien DNA can be introduced into host cell by microinjection and biolistics. Explain these methods. (2)
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION 2010 MARCH 1. Johny, a Plus Two student is from a tribal colony with lower level of vitamins, minerals and protein deficiency. He wishes to be a plant breeder to help…
SEXUAL REPRODUCTION IN FLOWERING PLANTS 2015 MARCH 1. (a) Reeja a science student observed the structure of mature embryo sac comprising antipodals, central cells and egg apparatus. Explain each one of them. …
2013 MARCH 1. In honeybees and some lizards female gamete undergoes development to form new organisms without fertilization. This phenomenon is called ………….. (1)
REPRODUCTION IN ORGANISMS 2016 MARCH 1. When a gamete without any fusion develop into a new organism the phenomenon is called a) Syngamy (b) External fertilization
ANIMAL KINGDOM 2016 MARCH 1. The characteristic features of an invertebrate is given. “The phylum includes the comb jellies, also called walnuts. They are noted for their bioluminescence and comb plates.” Identify…