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Women are often blamed for producing fem...

Women are often blamed for producing female children. Consequently, they are ill treated and ostracized. How will you address this issue scientifically if you were to conduct an awareness programme to highlight the values involved?

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**Step-by-Step Solution:** 1. **Introduction to the Issue:** - Begin by acknowledging the societal issue where women are blamed for giving birth to female children. Emphasize that this is a misconception and harmful to women's rights and dignity. 2. **Scientific Explanation of Sex Determination:** - Explain the biological basis of sex determination in humans. - State that humans have 23 pairs of chromosomes, including one pair that determines sex (XX for females and XY for males). ...
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A large number married couples in the world over are childless. It is shocking to know that in India the female partner is often blamed for the couple being childless. (a)Why in your opinion the female partner is often blamed for such situations in India? Mention any two values that you as biology student can promote to check this social evil. (b) State any two reasons responsible for the cause of infertility. (c) Suggest a technique that can help the couple to have a child where the problem is with the male partner.

A large number married couples the world over are childless. It is shocking to know that in India the female partner is often blamed for the couple being childless. (a)Why in your opinion the female partner is often blamed for such situations in India? Mention any two values that you as biology student can promote to check this social evil. (b) State any two reasons responsible for the cause of infertility. (c) Suggest a technique that can help the couple to have a child where the problem is with the male partner.

The shells of crabs found around a particular coastal location in Japan seem mostly to resemble the legendary face of a Samurai. Given below are two explanations of this observed fact. Which of these strikes you as a scientific explanation ? (a) A tragic sea accident several centuries ago drowned a young Samurai. As a tribute to his bravery, nature through its inscrutable ways immortalized his face by imprinting it on the crab shells in that area. (b) After the sea tragedy, fishermen in that area, in a gesture of honour to their dead hero, let free any crab shell caught by them which accidentally had a shape resembling the face of a Samurai. Consequently, the particular shape of the crab shell survived longer and therefore in course of time the shape was genetically propagated. This is an example of evolution by artificial selection. [Note : This interesting illustration taken from Carl Sagan's ''The Cosmos' highlights the fact that often strange and inexplicable facts which on the first sight appear 'supernatural' actually turn out to have simple scientific explanations. Try to think out other examples of this kind].

With the revolution in information technology, now it has become an integral part of everybody's life, living in rural and urban India. You are asked to address the gathering of students of eco-clubs of your neighbourhood schools on generation and management of e-waste. (a) Write how e-waste is generated. (b) Explain how would you address the awareness issue of e-waste management amongst the students. (c) How have the developed countries exploited the developing countries with respect to e-waste managements ?

Seeing the growing cases of diabetes and depression among young children, Mr. Chopra, the principal of one reputed school organized a seminar in which he invited parents and principals. They all resolved this issue by strictly banning junk food in schools and introducing healthy snacks and drinks like soup, lassi, milk, etc. in school canteens. They also decided to make compulsory half an hour of daily physical activities for the students in the morning assembly. After six months, Mr. Chopra conducted the health survey in most of the schools and discovered a tremendous improvement in the health of the students. After reading the above passage, answer the following questions : (i) What are the values (at least two) displayed by Mr. Chopra ? (ii) As a student, how can you spread awareness about this issue ? (iii) Why should antidepressant drugs not be taken without consulting a doctor ? (iv) Give two examples of artificial sweeteners.

(a) Write the function of each of the following parts of human eye : cornea, iris, crystalline lens, ciliary muscles (b) Millions of people of the developing countries of the world are suffering from corneal blindness. These persons can be cured by replacing the defective cornea with the cornea of a donated eye. A charitable socity of your city has organised a compaign in your neighbourhood in order to create awareness about this fact. If you are asked to participate in this mission how would you contribute in this noble cause ? (i) State the objective of organising such compaigns. (ii) List two arguments which you would give to motivate the people to donate their eyes after death. (iii) List two values which are developed in the persons who actively participate and contribute in such programmes.

XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-Section C
  1. (a) Draw an L.S. of pistil showing pollen tube entering into the embry...

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  2. Name the kind of diseases/disorders and any two symptoms that are like...

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  3. Name the technique and the property of plant cells that can help to gr...

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  4. Give reasons why : (a) DNA cannot pass into a host cell through the...

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  5. State the medicinal value and the bioactive molecules produced Penicil...

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  6. Explain the steps in the formation of an ovum from an oogonium in huma...

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  7. a) Explain "birth rate" in a population by taking a suitable example. ...

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  8. a) Explain DNA polymorphism as the basis of genetic mapping of human g...

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  9. a) Explain "death rate" in a population by taking a suitable example. ...

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  10. Explain any three advantages the seeds offer to angiosperms.

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  11. Name and explain the role of inner and middle walls of the human uteru...

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  12. A color-blind child is born to a normal couple. Work out a cross to sh...

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  13. Mendel published his work on inheritance of characters in 1865, but is...

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  14. Women are often blamed for producing female children. Consequently, th...

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  15. a) Name the tropical sugar cane variety grown in South India. How has ...

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  16. Why are beehives kept in crop field during flowering period? Name any ...

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  17. Study the graph given below and answer the questions that follow: ...

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  18. i) What is primary productivity? Why does it vary in different types o...

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  19. A cross between a normal couple resulted in a son who was haemophilic ...

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