Related InterviewSolutions

• Which of the following statement/s regarding gametogensis is/ are wrong ? I. Gametogensis refers to the process of formation of the two types of gametes. II. Gametogenesis occurrs is gonads. III. In a majority of sexually reproducing organisms the gameter produced are of morphologically in simialr types (isogametes). IV. Gametogenesis involves the meictioc divison . V. The male gamtes is called the antheroid or sperm and the female gamete is called the egg or ovum.A. II and IV onlyB. III and V onlyC. I, II and III onlyD. III only
• Why are the plants raised through micropropagation termed somaclones ? (b) Mention two advantage of this technique .
• In an experiment, Mr. john dissected a large potato tuber into several small pieces and then placed each piece in a separate pot for gertmination. After few days, he observed that a few pieces germinated and developed new plants. The others did not germinate at all. Give the possible reasons.
• Paedogenesis is found in the larvae ofA. TaeniaB. FasciolaC. RanaD. Butterfly
• Testa of seed develops fromA. ovary wallB. hilumC. outer integument of ovuleD. funicle
• Biodiversity of a geographical region representsA. endangered species found in the regionB. the diversity in the oragnisms living in the regionC. genetic diversity in the dominant species of the regionD. None of these
• Choose the correct options I. Gametes are always produced from diploid parent plant body. II. Meiocytes are sporocytes in all plants. III. The gymnosperms and pteriodophytes have diploid parent body. IV. In seed plants, pollen grains are carrier of male gametes.A. I, II are correctB. III, IV are correctC. I, III are correctD. II, IV are correct
• The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seeding will be, respectivelyA. 12, 24, 12B. 24, 12, 12C. 12, 24, 24D. 24, 12, 24
• The method of vegetative propagation in Bougainvillea isA. graftingB. LayeringC. bulbilsD. cutting
• Among the following which is not a method of vegetative propagation?A. Binary fissionB. LayeringC. Stem cuttingD. Tissue culture