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Q.63 Given below are two statements: Statement I: Ruska developed first transmission Electron microscope (TEM) which has resolution 1000 times better than the light microscope. Statement II. Transmission Electron microscope […]

Q.62 Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Sugars translocated in phloem are in non-reducing fonn. […]

Q.61 During operation of C2 oxidative photosynthetic cycle, molecules move from one organelle to another in the following manner: A. Glycine is transported to mitochondria B. Glycolate is transported to […]

Q.60 Formation of gas bubble leading to collapse of tension in liquid phase during water transport in xylem is called: 1. Capitation 2. Adhesion 3. Cavitation 4. Cohesion Formation of […]

Q.59 Which of the following statements are hue regarding the nature of cell wall of different microorganisms? A. Cell wall of bacteria is composed of true peptidoglycan a complex having […]

Q.58 In CAM pathway. the stomata : 1. opens during day 2. opens during night 3. remain closed during day and night 4. remain open during day and nigt In […]

Q.57 Match List I with List II LIST I (Apomixis Type) LIST II (Feature) A. Ixeris I. Precocious desynapsis B. Allium II. MMC bypasses meiosis C. Taraxacum III. Asyndetic meiotic […]

Q.56 Ultrastructural details of constituent cells of female gametophyte was first explained by: I. Panchanan Maheshwari 2. Jack Hesslop-Harrison 3. William A. Jensen 4. N. S. Rangaswamy William A. Jensen first […]

Q.55 For commercial production of hybrid seeds, the tlu•ee lines namely A. B and C refer to: I. Maintainer, female parent and restorer. respectively. 2. Restorer, Maintainer, bisexual parent respectively […]

Q.54 The type of embryogeny in which the apical cell of a 2-celled proembryo divides transversely and both the daughter cells contribute to the development of embryo is known as […]