CBSE Class 12 Biology HOTs All Chapters Set A
BIOLOGY - XII 01 REPRODUCTION IN ORGANISMS HOTS (Questions) 1. What is the terminology for the concept of group immortality? 2. Life span of May fly is 01 day while that of Banyan tree can be 200 yrs. What message do you get from this data concerning BMR (Basic…
CBSE Class 12 Biology HOTs Molecular Basis of Inheritance
Important Questions for NCERT Class 12 Biology Molecular Basis of Inheritance Question. DNA is a (a) long polymer of deoxyribonucleotides (b) short polymer of deoxyribonucleotides (c) monomer polymer of deoxyribonucleotides (d) long polymer of ribonucleotides Answer : A…
CBSE Class 12 Biology HOTs Human Health and Disease
Chapter-8. HUMAN HEALTH AND DISEASE Question. Short-lived immunity acquired from mother to fetus across the placenta or through mother’s milk to the infant is categorised as (a) active immunity (b) passive immunity (c) CMI (d) autoimmunity. Answer : B…
CBSE Class 12 Biology HOTs Biodiversity
BIODIVERSITY 1 marks Q.1) a) India has more than 50000 different strains of rice and 1000 varieties of mangoes. b) Western Ghats have a greater Amphibian diversity than the Eastern Ghats. What do you infer from the above two…
CBSE Class 12 Biology HOTs Biology in Human Welfare
Q.1 All human beings have Proto oncogenes. But all of them do not suffer from cancer. Why? (1) Hint. Proto oncogene does not express itself. Q.2. Do you agree that infected cells of our body can protect the non infected cells? If yes, how? Hint.Through…
CBSE Class 12 Biology HOTs Genetics and Evolution
21. There is a large increase in absorption of Ultraviolet radiation of 260nm by melted DNA as compared to intact DNA. What is this differential effect called? Ans: Heterochromatic effect. 22. What kind of inheritance is seen in haemophilia?…