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Tamil Nadu Board of Secondary EducationHSC Science Class 12

HSC Science Class 12 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Botany

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Botany
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S. no Gamete types Number of progenies
1. ABC 349
2. Abc 114
3. abC 124
4. AbC 5
5. aBc 4
6. aBC 116
7. ABc 128
8. abc 360
  1. What is the name of this test cross?
  2. How will you construct gene mapping from the above-given data?
  3. Find out the correct order of genes.
[3] Chromosomal Basis of Inheritance
Chapter: [3] Chromosomal Basis of Inheritance
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What is gene mapping? Write its uses.

[3] Chromosomal Basis of Inheritance
Chapter: [3] Chromosomal Basis of Inheritance
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Which of the following statement is correct

[5] Plant Tissue Culture
Chapter: [5] Plant Tissue Culture
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Solidifying agent used in plant tissue culture is

[5] Plant Tissue Culture
Chapter: [5] Plant Tissue Culture
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What is the name of the process given below? Write its 4 types.

[5] Plant Tissue Culture
Chapter: [5] Plant Tissue Culture
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Write the various steps involved in cell suspension culture.

[5] Plant Tissue Culture
Chapter: [5] Plant Tissue Culture
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Based on the material used, how will you classify the culture technology? Explain it.

[5] Plant Tissue Culture
Chapter: [5] Plant Tissue Culture
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Write the protocol for artificial seed preparation.

[5] Plant Tissue Culture
Chapter: [5] Plant Tissue Culture
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Enumerate the anatomical adaptations of xerophytes.

[6] Principles of Ecology
Chapter: [6] Principles of Ecology
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List out any five morphological adaptations of halophytes.

[6] Principles of Ecology
Chapter: [6] Principles of Ecology
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Deforestation means

[8] Environmental Issues
Chapter: [8] Environmental Issues
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Deforestation does not lead to

[8] Environmental Issues
Chapter: [8] Environmental Issues
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What are the effects of deforestation and the benefits of agroforesty?

[8] Environmental Issues
Chapter: [8] Environmental Issues
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This is an example of brush fibre yielding plant

[10] Economically Useful Plants and Entrepreneurial Botany
Chapter: [10] Economically Useful Plants and Entrepreneurial Botany
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Describe the types of fibres.

[10] Economically Useful Plants and Entrepreneurial Botany
Chapter: [10] Economically Useful Plants and Entrepreneurial Botany
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First cell of male gametophyte in angiosperm is

[1] Asexual and Sexual Reproduction in Plants
Chapter: [1] Asexual and Sexual Reproduction in Plants
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Arrange the layers of another wall from locus to periphery

[1] Asexual and Sexual Reproduction in Plants
Chapter: [1] Asexual and Sexual Reproduction in Plants
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Choose the correct statement(s) about tenuinucellate ovule

[1] Asexual and Sexual Reproduction in Plants
Chapter: [1] Asexual and Sexual Reproduction in Plants
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Differentiate Secretary and invasive tapetum.

[1] Asexual and Sexual Reproduction in Plants
Chapter: [1] Asexual and Sexual Reproduction in Plants
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What is Cantharophily?

[1] Asexual and Sexual Reproduction in Plants
Chapter: [1] Asexual and Sexual Reproduction in Plants
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