Category: ICSE Class 12 Biology

Very Short Answer Type Questions Question. Give an example of a codon having dual function.Answer : AUG.  Question. Name the negatively charged and positively charged components of a nucleosome.Answer : Negatively charged component is DNA, positively charged component is histone octamer.  Question. Name one amino acid, which is coded by only one codon.Answer : Methionine / Tryptophan  Question. Write the two […]

TOPIC-1Mendelian Laws of Inheritance and ChromosomalTheory of Inheritance Very Short Answer Type Questions Question. Write technical term used in human ABO blood groups for IA, IB and i Answer : IA, IB and i are the alleles of the gene Question. How does a test cross help to determine the genotype of an individual ?Answer : Individual of unknown genotype […]

Very Short Answer Type Questions Question. In case of an infertile couple, the male partner can inseminate normally but the mobility of sperms is below 40 percent. Judge, which kind of ART is suitable in this situation to form an embryo in the laboratory, without involving a donor ?Answer : Intra Cytoplasmic Sperm Injection Question. State one reason why breast […]

Topic-1Male and Female Reproduction System Very Short Answer Type Questions Question. Name the pouch in which the human testes are present.Answer : Scrotum.  Question. Name the cells that nourish the germ cells in the testes. Where are these located in the testes ?Answer : Name of cells—Sertoli cells.Location—They are found lining-up the inner surface of seminiferous tubules.  Question. Write the location and […]

Very Short Answer Type Questions Question. Give an example of a plant that came to India as a contaminant and is a cause of pollen allergy.Answer :  Parthenium or carrot grass. Question. State the function of filiform apparatus found in mature embryo sac of an angiosperm.Answer :  Filiform apparatus helps to guide the path of pollen tubes into […]

Very Short Answer Type Question Question. Identify ‘A’ in the given diagram and state its function. Answer : ‘A’—Adventitious budsFunction — Vegetative propagation  Question. Identify ‘A’ in the given diagram and state its function. Answer : ‘A’—NodesFunction — Vegetative propagation  Question. Name the units of vegetative propagation in grasses and water hyacinth.Answer : Grasses : Runner.Water hyacinth : Offset. Question. […]

Chapter 1 Reproduction in Organisms Chapter 2 Sexual Reproduction in Flowering Plants Chapter 3 Human Reproduction Chapter 4 Reproductive Health Chapter 5 Principles of Inheritance and Variation Chapter 6 Molecular Basis of Inheritance Chapter 7 Evolution Chapter 8 Human Health and Diseases Chapter 9 Strategies for Enhancement in Food Production Chapter 10 Microbes in Human […]