Variations and Mutations Test 03 Preparation Online Shani Malik — January 16, 2021 in Biology Tests • add comment Variations and Mutations Test 03 Preparation Online 1. The term "Saltatory or Discontinuous Variations" was used by Bateson for?A. Random distribution of homologous genes in meiosisB. Somatogenic changes occurring in organism during lifetime C. Random union of gametes in fertilization D. Sudden changes in the characteristics of organisms due to chemical changes in their genetic material Loading... 2. Who demonstrated development of important variations in mice reared at 5?C and 21?C?A. Huxley and Muller B. Bateson and PunettC. Darwin and Walliace D. Tower and Agar Loading... 3. Change in gene pattern bringing about variations may be due to?A. Random distribution of homologous genes in meiosis B. Phenomenon of crossing over C. Random union of gametes in fertilization D. All of these Loading... 4. "Gene Point Mutations" are?A. Changes in nucleotide sequence of DNA molecule usually at a single place affecting single gene B. Alteration in number of chromosomes C. None of theseD. Changes in chramosome effecting a number of genes simultaneously Loading... 5. If all the organisms would have inherited same genotype there would have been?A. No evolution B. Better evolution C. Something elseD. Special type of evolution Loading... 6. Difference in somatogenic and blastogenic variations is that?A. Former mayor may not be inherited but later are always inherited B. Both are not inheritedC. Former are not inherited but later may be inherited D. Both are inherited compulsorily Loading... 7. Mutations occur during process of gametogenesis due to errors in chromosome duplication and crossing over by?A. Deletion process B. Inversion process C. Translocation process D. All of these processes Loading... 8. Mutations were also called "Sports" by?A. Darwin B. None of themC. Lamarck D. Oparin Loading... 9. Who considered variations as characters acquired by the organisms during their life-time?A. LamarckB. De VriesC. Dodson D. Darwin Loading... 10. Sudden changes in characteristics of organism due to chemical changes in their genetic materials are called?A. Mutations B. Both (a) & (b) C. Variations D. None of these Loading... Loading...
