NCER Exemplar Problems Class 12 Biology Chapter 11 Biotechnology: Principles and Processes Multiple Choice Questions Single Correct Answer Type 1. Rising of dough is due to (a) Multiplication of yeast (b) Production of CO2 (c) Emulsification (d) Hydrolysis of wheat flour starch into sugars. Answer. (b) Dough, which is used for making dosa and idli…
Read more
NCERT Exemplar Problems Class 12 Biology Chapter 10 Microbes in Human Welfare Multiple Choice Questions Single Correct Answer Type 1. The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is (a) Vitamin C (b) Vitamin D (c) Vitamin B12 (d) Vitamin E Answer. (c) The vitamin B12 content…
Read more
NCERT Exemplar Problems Class 12 Biology Chapter 9 Strategies for Enhancement in Food Production Multiple Choice Questions Single Correct Answer Type 1. The chances of contacting bird flu from a properly cooked (above 100°C) chicken and egg are (a) Very high (b) High (c) Moderate (d) None Answer. (d) Properly cooked (above 100°C) chicken and…
Read more
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…
Read more
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…
Read more
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…
Read more
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…
Read more
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…
Read more
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)…
Read more
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…
Read more