Title 07. EVOLUTION.pdf ✅

07. EVOLUTION 1. Consider following statements regarding microspheres. (i) They were spherical in shape and 1 2  m in diameter. (ii) They had concentric double-layered boundaries. (iii) They provided partial isolation to contents inside it, from external environment. (iv) They had catalytic activity. Which of the above statements are incorrect? (a) (i) only (b) (ii) only (c) (iv) only (d) None of the above. 2. Which of the following is used as an atmospheric pollutions indicator? (a) Lichens (b) Lepidoptera (c) Lycopersicon (d) Lycopodium 3. The jurassic period belongs to the _____ era. (a) Cenozoic (b) Paleozoic (c) Mesozoic (d) Proterozoic 4. According to Darwin, the organic evolution is due to (a) Interspecific competition (b) Reduced feeding efficiency in one species due to the presence of interfering species (c) Intraspecific competition (d) Competition within closely related species 5. Refer the given figure. What does it represent? (a) Convergent evolution (b) Adaptive radiation (c) Divergent evolution (d) Both (b) and (c) 6. The theory of spontaneous generations stated that (a) Life can arise from non-livings things only (b) Life arose from livings forms only (c) Life can arise from both livings and non-living (d) Life arises spontaneously, neither form livings nor forms the non-livings. 7. Which of the following evidences does not favour the lamarckian concept of inheritance of acquired characters? (a) Lack of pigment in cave-dwelling animals. (b) Absence of limbs in snakes. (c) Melanization in peppered moth. (d) Presence of webbed toes in aquatic birds. 8. Animal husbandry and plant breeding programmes are the examples of (a) Artificial selections (b) Reverse evolutions (c) Mutations (d) Natural selection

(b) Convergent evolutions (c) Artificial selections (d) Genetic drift 17. One of the possible early sources of energy were/was (a) UV rays and lightening. (b) (c) Chlorophyll (d) Green plants 18. represent an equations used in (a) Mendelian genetics (b) Biomtrics (c) Populations genetics (d) Molecular genetics. 19. Which of the following isotopes is used for finding the fossil age more than 4500 years? (a) (b) (c) (d) 20. Evolution of life shows that life forms had a trend of moving from (a) Water to land (b) Land to water (c) Dryland to wet land (d) Fresh water to sea water 21. Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements. (A) Wings of butterfly and birds look alike and are the results of (i) evolution. (B) Miller showed that and (i) when exposed to electric discharge in a flask resulted in formation of (ii) (C) Vermiform appendix is a (i) organ and an (ii) evidence of evolution. (D) According to Darwin evolution took place due to (i) and (ii) of the fittest. (a) (A) - (i) convergent; (B) -(i) oxygen, (ii) nucleosides (b) (B) - (i) water vapour, (ii) amino acids; (C) -(i) homologous, (ii) anatomical (c) (A)- (i) convergent; (D) -(i) small variations, (ii) survival (d) (C) - (i) Vestigial, (ii) anatomical; (D) - (i) mutations, (ii) multiplication 22. For the MN-blood group system, the frequencies of M and N alleles are and , respectively. The expected frequency of MN-blood group bearing organisms is likely to be (a) 49 % (b) 42 % (c) 9 % (d) 58 % 23. Select the pair which does not match. (a) Species are not immutable - Lamarck (b) Allopatric - Separated by space (c) Darwin’s finches - Unique to Galapagos (d) Coacervates - Aggregates of organic compounds separated by an organic membrane 24. Which type of selection is industrial melanism observed in moth, Biston betularia (a) Directional (b) Stabilising (c) Disruptive (d) Artificial 25. Given below are four statements (i) - (iv) regarding geological time scale. Read them carefully. (i) Palaeozoic era is the era of ancient life. CO2 (p q) p 2pq q 1 2 2 2      C 14H 3 Pb 206U 238 4 2 NH3 CH ,H , 0.7 0.3