61 The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called________? Biology Medium Full question → A Environmental biology B Social biology C Human biology D Both b and c
62 ___________ is the potential surce of chemical energy for cellular activities? Biology Medium Full question → A C-H bond B C-O bond C C-N bond D P-O-C bond
63 In animals coordination is achieved by means of_________? Biology Medium Full question → A Respiratory system B Nervous system C Endocrine system D Both b and c
64 Different species of plants and animals living in the same habitat is called ___________? Biology Medium Full question → A Population B Community C Biome D Habitat
65 The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called__________? Biology Medium Full question → A An organ B A molecule C Tissue D Both a and c
66 Percentage of water in brain cells is_______? Biology Medium Full question → A 20% B 65% C 85% D 89%
67 The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by________? Biology Medium Full question → A Molecular biologists B Microbiologists C Freshwater biologists D Social biologist
68 A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called__________? Biology Medium Full question → A Substrate B Co-factor C Inhibitor D Promotor
69 The study of fossils is called__________? Biology Medium Full question → A Environmental Biology B Historical biology C Palaeontology D Social biology
70 Which character differentiates living things from non-living organisms___________? Biology Medium Full question → A They live in the same ecosystem. B They are acted upon by the same environment C They are highly organized and complex made of one or more cells and contain genetic material D Both a and b
71 Ribosomes were discovered by_______? Biology Medium Full question → A Golgi B De Duve C Palade D R.Brown
72 The innate tendency of offspring to resemble their parents is called________? Biology Medium Full question → A heridity B heridisk C varaition D none
73 PCR stand for _________? Biology Medium Full question → A Polymerase chain reaction B Poly carbomyl reaction C Peptide chain reaction D Pentapeptide chain reaction
74 The tumours which are of small size and localized are___________? Biology Medium Full question → A benign B malignant C gentle D nasty
75 A-biogenesis means that_____________? Biology Medium Full question → A Living things originated from bacteria B Mycobionts C Non-living things D None of these
76 Un-separated replica of chromosome is called___________? Biology Medium Full question → A Chromatin B Kinetochore C Chromatid D Centromere
77 Only myosine is present in_____________? Biology Medium Full question → A A band B 1 band C H zone D Sarcomere
78 Which of the following cytoskeletal fiber contain tubulin protein? Biology Medium Full question → A One which help in assembly of spindles during mitosis. B One involved in internal cell motion. C One involved in maintenance of cell shape. D Both b and c
79 Sapwood is formed from_____________? Biology Medium Full question → A Primary xylem B Secondary xylem C Primary phloem D Secondary phloem
80 Autophagosomes are____________? Biology Medium Full question → A Those lysosomes which eat parts of their own cells to generate energy. B Those lysosomes which eat old and worn out cellular organelles. C Lysosomes which help in extracellular digestion D Both a and b