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Tamil Nadu Board of Secondary EducationHSC Science कक्षा १२

HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Zoology

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Zoology
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Give an account of the genetic control of the Rh factor. 

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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What are stem cells? Explain its role in the field of medicine.

[10] Applications of Biotechnology
Chapter: [10] Applications of Biotechnology
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Which of the following is considered a hotspots of biodiversity in India.

[12] Biodiversity and Its Conservation
Chapter: [12] Biodiversity and Its Conservation
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Define endemism.

[12] Biodiversity and Its Conservation
Chapter: [12] Biodiversity and Its Conservation
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How many hotspots are there in India? Name them.

[12] Biodiversity and Its Conservation
Chapter: [12] Biodiversity and Its Conservation
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Excess of fluoride in drinking water causes:

[13] Environmental Issues
Chapter: [13] Environmental Issues
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Write notes on the following:

Algal Bloom

[13] Environmental Issues
Chapter: [13] Environmental Issues
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What are some solutions to toxic dumping in our oceans?

[13] Environmental Issues
Chapter: [13] Environmental Issues
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List the various menstrual disorders.

[2] Human Reproduction
Chapter: [2] Human Reproduction
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XO type of sex determination and XY type of sex determination are examples of ____________.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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ZW-ZZ system of sex determination occurs in

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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Which of the following is incorrect regarding ZW-ZZ type of sex determination?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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What is haplodiploidy?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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Distinguish between heterogametic and homogametic sex determination systems.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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What is Lyonisation?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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Differentiate Intersexes from Supersexes.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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What is male heterogamety?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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Brief about female heterogamety.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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Explain the mode of sex determination in honeybees.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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The total number of nitrogenous bases in human genome is estimated to be about ____________.

[5] Molecular Genetics
Chapter: [5] Molecular Genetics
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