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Important Questions for ISC (Science) Class 12 - CISCE - Biology (Theory)

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Biology (Theory)
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Mention any three characteristics of Neanderthal man that lived in near east and central Asia.

Appears in 4 question papers
Chapter: [2.03] Evolution
Concept: Human Evolution

Draw a labeled diagram of a mature embryo sac.

Appears in 3 question papers
Chapter: [1.03] Human Reproduction
Concept: Embryo Development Upto Blastocyst Formation

State any three goals of the human genome project.

Appears in 3 question papers
Chapter: [2.02] Molecular Basis of Inheritance
Concept: Human Genome Project

Define Parthenocarpy

Appears in 2 question papers
Chapter: [1.02] Sexual Reproduction in Flowering Plants
Concept: Significance of Seed Dispersal and Fruit Formation

What is spermatogenesis? Briefly describe the process of spermatogenesis.

Appears in 2 question papers
Chapter: [1.03] Human Reproduction
Concept: Gametogenesis in Animal

Draw a diagram of the internal structure of the human ovary.

Appears in 2 question papers
Chapter: [1.03] Human Reproduction
Concept: Microscopic Anatomy of Ovary

What is emasculation?

Appears in 2 question papers
Chapter: [3.02] Strategies for Enhancement in Food Production
Concept: Plant Breeding

What is a 'biopatent'? Explain it with a suitable example.

Appears in 2 question papers
Chapter: [4.02] Biotechnology and Its Applications
Concept: Ethical Issues

What is Red Data Book?

Appears in 2 question papers
Chapter: [5.03] Biodiversity and Its Conservation
Concept: Biodiversity

What is symbiosis?

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Introduction of Reproduction in Organisms

Explain the term perianth.

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Introduction of Reproduction in Organisms

Give the biological name of the following: 

Baker’s yeast

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Asexual Reproduction

The following question(s)/statement(s) has four suggested answers. Choose the correct option in the following case.

After fertilisation, the integuments of an ovule develop into : __________.

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Sexual Reproduction > Pre-fertilisation Events - Gametogenesis

Differentiate between the following :

Spermatogenesis and oogenesis

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Sexual Reproduction > Pre-fertilisation Events - Gametogenesis

What are seasonal breeders? Give an example.

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Introduction of Sexual Reproduction

How is the chromosome number maintained in sexually reproducing organisms?

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Introduction of Sexual Reproduction

State two advantages of vegetative propagation.

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Asexual Reproduction

Give two differences between heartwood and sapwood.

Appears in 1 question paper
Chapter: [1.01] Reproduction in Organisms
Concept: Introduction of Reproduction in Organisms

Why is non-cyclic photo phosphorylation considered as a non-cyclic pathway?

Appears in 1 question paper
Chapter: [1.02] Sexual Reproduction in Flowering Plants
Concept: Introduction of Sexual Reproduction in Flowering Plants

Triple Fusion involves:
(i) Fusion of one male, gamete with female gamete
(ii) Fusion of tube nucleus with generative nvcleus
(iii) Fusion of two polar nuclei.
(iv) Fusion of second male gamete with two polar nuclei

Appears in 1 question paper
Chapter: [1.02] Sexual Reproduction in Flowering Plants
Concept: Double Fertilization in Plants
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Important Questions for ISC (Science) Class 12 CISCE Biology (Theory). You can further filter Important Questions by subjects and topics. Chapter wise important Questions for Class 12 CISCE. it gets easy to find all Class 12 important questions with answers in a single place for students. Saving time and can then focus on their studies and practice. Important questions for Class 12 chapter wise with solutions

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