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Neural control and coordination: Previous Year Questions Part 2
NEURAL CONTROL AND COORDINATION
2013 MARCH
1. Arrange the following processes in nerve impulse conduction in a sequential order. (3)
Neural control and coordination: Previous Year Questions Part 3
NEURAL CONTROL AND COORDINATION
MARCH 2016
1. Observe the diagram carefully and answer the following questions. (3)
Chemical coordination and integration: Previous Year Questions Part 2
CHEMICAL COORDINATION AND INTEGRATION
2013 MARCH
1. Fill the table appropriately. (2)
Chemical coordination and integration: Previous Year Questions Part 3
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 Reproduction: Previous Year Questions Part 2
HUMAN REPRODUCTION
2013 MARCH
1. The following statements compare the process of oogenesis & spermatogenesis. Which one is not true? (1)
Human Reproduction: Previous Year Questions Part 3
HUMAN REPRODUCTION
2016 MARCH
1. Match the columns A and B: (2)
Reproductive health: Previous Year Questions Part 2
REPRODUCTIVE HEALTH
2013 MARCH
1. Suggest the ART which may be successful in the following conditions. (½ + ½ + 2=3)
Reproductive health: Previous Year Questions Part 3
REPRODUCTIVE HEALTH
2016 MARCH
1. Categorize the given birth control methods into three groups with proper heads.
Principles of inheritance and variation: Previous Year Questions Part 2
PRINCIPLES OF INHERITANCE AND VARIATION
2013 MARCH
1. Identify the traits from the pedigree chart. Give one example each. (1+1 =2)
Principles of inheritance and variation: Previous Year Questions Part 3
PRINCIPLES OF INHERITANCE AND VARIATION
2016 MARCH
1. Which of the following is not a Mendelian disorder?
Molecular basis of inheritance: Previous Year Questions Part 2
MOLECULAR BASIS OF INHERITANCE
2013 MARCH
1. The flow of genetic information is shown below. Name the processes a, b, c & d. (4 x ½ =2)
Molecular basis of inheritance: Previous Year Questions Part 3
MOLECULAR BASIS OF INHERITANCE
2016 MARCH
1. Result of a famous experiment is given in the figure. Answer the questions.
Evolution: Previous Year Questions Part 2
EVOLUTION
2013 MARCH
1. Arrange the following examples under two heads viz- homologous organs and analogous organs. (Score: 2)
Evolution: Previous Year Questions Part 3
EVOLUTION
2016 MARCH
1. Which theory talks about the huge explosion that leads to origin of universe? (Score: 1)
Human health n diseases: Previous Year Questions Part 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)
Human health n diseases: Previous Year Questions Part 3
HUMAN HEALTH AND DISEASES
2016 MARCH
1. Identify the disease shown in the following figure and write the causative organism of the disease. (Score: 1)
Microbes in human welfare: Previous Year Questions Part 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)
Microbes in human welfare: Previous Year Questions Part 3
MICROBES IN HUMAN WELFARE
2016 MARCH
1. “BOD is commonly calculated as an index of water pollution.”
Biodiversity and conservation: Previous Year Questions Part 2
BIODIVERSITY AND CONSERVATION
2012 SAY
1. Last 20 years alone have witnessed the disappearance of 27 animal species from earth.
Biodiversity and conservation: Previous Year Questions Part 3
BIODIVERSITY AND CONSERVATION
2016 MARCH
1. Observe the concept diagram of the Evil Quartet of biodiversity loss.
Sunday, March 10, 2019
Environmental issues: Previous Year Questions Part 1
ENVIRONMENTAL ISSUES
2010 MARCH
1. Destruction of forest leads to the
increase of CO2 in atmosphere. Recently Govt. of India instituted an
award for individuals or communities from rural areas that shown extraordinary
courage and dedication in protecting wildlife.
Environmental issues: Previous Year Questions Part 2
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.
Environmental issues: Previous Year Questions Part 3
ENVIRONMENTAL ISSUES
2016 MARCH
1.
Increase
in the concentration of toxicants at successive trophic level is called
Ecosystems: Previous Year Questions Part 1
ECOSYSTEMS
2010 MARCH
1. During a study tour teacher showed the
primary colonizers on the banks of the river ‘Nila’.
Ecosystems: Previous Year Questions Part 2
ECOSYSTEMS
2013 MARCH
1. Final community
that is in near equilibrium with environment in ecological succession is called
(1)
Ecosystems: Previous Year Questions Part 3
ECOSYSTEMS
2016 MARCH
1.
Nutrients
are never lost from the ecosystems and are recycled. Write about
Organisms and populations: Previous Year Questions Part 1
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.
Organisms and populations: Previous Year Questions Part 2
ORGANISMS AND POPULATIONS
2013 MARCH
1. Read the
statements below and identify the mode of interaction between the species. (2)
Organisms and populations: Previous Year Questions Part 3
ORGANISMS AND POPULATIONS
2016 MARCH
1.
a)
Population interactions may be beneficial or not. Write any three interactions
in detail. (Scores:
3)
Biotechnology and its Applications: Previous Year Questions Part 1
BIOTECHNOLOGY AND ITS APPLICATIONS
2010 MARCH
1. Teacher asked Balan to write the
principle of RNAi technology. Help him by describing the method. (1)
Biotechnology and its Applications: Previous Year Questions Part 2
BIOTECHNOLOGY AND ITS APPLICATIONS
2013 MARCH
1. A novel
strategy to prevent nematode manifestation is based on ‘RNA interference’.
Biotechnology and its Applications: Previous Year Questions Part 3
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: Previous Year Questions Part 1
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: Previous Year Questions Part 2
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)
Biotechnology-Principles and processes: Previous Year Questions Part 3
BIOTECHNOLOGY- PRINCIPLES AND PROCESSES
2016 MARCH
1.
Strategies for enhancement in food production: Previous Year Questions Part 1
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 the public by producing new crops with
high levels of vitamins, minerals, protein etc. identify the phenomenon. (2)
Strategies for enhancement in food production: Previous Year Questions Part 2
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
2013 MARCH
1. MOET is a
programme for herd improvement. Expand MOET. (1)
Strategies for enhancement in food production: Previous Year Questions Part 3
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
2016 MARCH
1.
(a)
Resistance is the ability to prevent the pathogen from causing disease.
Sexual reproduction in flowering plants: Previous Year Questions Part 1
SEXUAL REPRODUCTION IN FLOWERING PLANTS
2010 MARCH
1.
Given
below in the diagram showing the transfer of pollen grains.
Sexual reproduction in flowering plants: Previous Year Questions Part 2
SEXUAL REPRODUCTION IN FLOWERING PLANTS
2013 MARCH
1.
After syngamy and triple fusion in embryo sac,
embryo will be diploid and endosperm will (1)
Sexual reproduction in flowering plants: Previous Year Questions Part 3
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. (Scores:
1+2+1=4)
Reproduction in organisms: Previous Year Questions Part 1
REPRODUCTION IN ORGANISMS
2010 MARCH
1. Fill up the blanks after reading the
statement: (1)
The post fertilization events in
angiosperms.
Reproduction in organisms: Previous Year Questions Part 2
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: Previous Year Questions Part 3
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
Friday, March 8, 2019
Animal Kingdom: Previous Year Questions Part 3
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 the phylum. (1)
Biodiversity and conservation: Previous Year Questions Part 1
BIODIVERSITY AND CONSERVATION
2010 MARCH
1.
Gopalan cultivated a variety of fruit crops and plants in his field
and Raman destroyed the fruit crops and plants and cultivated rubber trees
which are double in number.
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