Category: Class 12 Biology

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NCERT Exemplar Problems Class 12 Biology Chapter 8 Human Health and Diseases

NCERT Exemplar Problems Class 12 Biology Chapter 8 Human Health and Diseases Multiple Choice Questions Single Correct Answer Type 1. The term ‘Health’ is defined in many ways. The most accurate definition of the health would be (a) Health is the state of body and mind in a balanced condition (b) Health is the reflection…
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NCERT Exemplar Problems Class 12 Biology Chaper 7 Evolution

NCERT Exemplar Problems Class 12 Biology Chaper 7 Evolution Multiple Choice Questions Single Correct Answer Type 1. Which of the following is used as an atmospheric pollution indicator? (a) Lepidoptera (b) Lichens (c) Lycopersicon (d) Lycopodium Answer. (b) Lichens are sensitive to SO2 pollution. Lichens are very good pollution indicators, they do not grow in…
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NCERT Exemplar Problems Class 12 Biology Chapter 6 Molecular Basis of Inheritance

NCERT Exemplar Problems Class 12 Biology Chapter 6 Molecular Basis of Inheritance Multiple Choice Questions Single Correct Answer Type 1. In a DNA strand the nucleotides are linked together by (a) Glycosidic bonds (b) Phosphodiester bonds (c) Peptide bonds (d) Hydrogen bonds Answer. (b) In a DNA strand the nucleotides are linked together by Phosphodiester…
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NCERT Exemplar Problems Class 12 Biology Chapter 5 Principles of Inheritance and Variation

NCERT Exemplar Problems Class 12 Biology Chapter 5 Principles of Inheritance and Variation Multiple Choice Questions Single Correct Answer Type 1. All genes located on the same chromosome (a) Form different groups depending upon their relative distance (b) Form one linkage group (c) Will not form any linkage groups (d) Form interactive groups that affect…
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NCERT Exemplar Problems Class 12 Biology Chapter 4 Reproductive Health

NCERT Exemplar Problems Class 12 Biology Chapter 4 Reproductive Health Multiple Choice Questions Single Correct Answer Type 1. The method of directly injecting a sperm into ovum is assisted by reproductive technology called (a) GIFT (b) ZIFT (c) ICSI (d) ET Answer. (c) Intra cytoplasmic sperm injection (ICSI) is a method in which embryo is…
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NCERT Exemplar Problems Class 12 Biology Chapter 3 Human Reproduction

NCERT Exemplar Problems Class 12 Biology Chapter 3 Human Reproduction Multiple Choice Questions Single Correct Answer Type Question.1. Choose the incorrect statement from the following: (a) In birds and mammals internal fertilisation takes place. (b) Colostrum contains antibodies and nutrients. (c) Polyspermy in mammals is prevented by the chemical changes in the egg surface. (d)…
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NCERT Exemplar Problems Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants

NCERT Exemplar Problems Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants Multiple Choice Questions Single Correct Answer Type Question.1. Among the terms listed below, those that are of not technically correct names for a floral whorl are i. Androecium ii. Carpel iii. Corolla iv. Sepal (a) i and iv (b) iii and iv…
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NCERT Exemplar Problems Class 12 Biology Chapter 1 Reproduction in Organisms

NCERT Exemplar Problems Class 12 Biology Chapter 1 Reproduction in Organisms Multiple Choice Questions Single Correct Answer Type 1. A few statements describing certain features of reproduction are given below i. Gametic fusion takes place ii. Transfer of genetic material takes place iii. Reduction division takes place iv. Progeny have some resemblance with parents Select…
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