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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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अध्याय
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Zoology
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What is bioremediation?

[9] Microbes in Human Welfare
Chapter: [9] Microbes in Human Welfare
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Transgenic animals are those which have ____________.

[10] Applications of Biotechnology
Chapter: [10] Applications of Biotechnology
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What are transgenic animals?

[10] Applications of Biotechnology
Chapter: [10] Applications of Biotechnology
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It is established that RNA is the first genetic material. Explain giving three reasons.

[5] Molecular Genetics
Chapter: [5] Molecular Genetics
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The foetal membrane that forms the basis of the umbilical cord is ____________.

[2] Human Reproduction
Chapter: [2] Human Reproduction
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Placenta is an endocrine tissue. Justify.

[2] Human Reproduction
Chapter: [2] Human Reproduction
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Name the hormones produced from the placenta during pregnancy.

[2] Human Reproduction
Chapter: [2] Human Reproduction
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Which of the following is correct regarding HIV, hepatitis B, gonorrhoea and trichomoniasis?

[3] Reproductive Health
Chapter: [3] Reproductive Health
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Which one of the following groups includes sexually transmitted diseases caused by bacteria only?

[3] Reproductive Health
Chapter: [3] Reproductive Health
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Identify the correct statements from the following.

[3] Reproductive Health
Chapter: [3] Reproductive Health
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Describe the major STDs and their symptoms.

[3] Reproductive Health
Chapter: [3] Reproductive Health
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How are STDs transmitted?

[3] Reproductive Health
Chapter: [3] Reproductive Health
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Write the preventive measures of STDs.

[3] Reproductive Health
Chapter: [3] Reproductive Health
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What are the applications of Karyotyping?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
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DNA and RNA are similar with respect to ____________.

[5] Molecular Genetics
Chapter: [5] Molecular Genetics
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What are the three structural differences between RNA and DNA?

[5] Molecular Genetics
Chapter: [5] Molecular Genetics
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Dolly, the sheep was obtained by a technique known as ____________.

[10] Applications of Biotechnology
Chapter: [10] Applications of Biotechnology
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The organization which published the red list of species is ____________.

[12] Biodiversity and Its Conservation
Chapter: [12] Biodiversity and Its Conservation
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Expand the acronym.

hPL

[2] Human Reproduction
Chapter: [2] Human Reproduction
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Correct the following statement.

Transfering of an embryo with more than 8 blastomeres into the uterus is called GIFT.

[3] Reproductive Health
Chapter: [3] Reproductive Health
Concept: undefined >> undefined
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