Which of the above is/are used to create transgenic crops?
Consider the following techniques/phenomena: 1. Budding and grafting in fruit plants 2. Cytoplasmic male sterility 3. Gene silencing Which of the above is/are used to create transgenic crops?(2014) a) 1 only b) 2 and 3 c) 1 and 3 d) None Answer: B A transgenic crop is a genetically modified organism (GMO). Transgenic indicates that […]
With reference to the carbon nanotubes, consider the following statements:
With reference to the carbon nanotubes, consider the following statements: Which of the statements given above are correct?(2020) a) 1 and 2 only b) 2, 3 and 4 only c) 1, 3 and 4 only d) 1, 2, 3, and 4 C The nanotube’s structure allows it to be used as a container for transporting […]
Which of the above activities can be successfully carried out by using drones ?
Consider the following activities : 1.Spraying pesticides on a crop field 2.Inspecting the craters of active volcanoes 3.Collecting breath samples from spouting whales for DNA analysis At the present level of technology Which of the above activities can be successfully carried out by using drones ?(2020) a) 1 and 2 only b) 2 and 3 […]
The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long
The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with lasers shining between the craft.” The experiment in question refers to(2020) a) Voyager-2 b) New Horizons c) LISA Pathfinder d) Evolved LISA Answer: D Evolved Laser Interferometer Space Antenna […]
Which of the statements given above is/are correct ?(2020)
Consider the following statements : 1.Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent. 2.A person’s genome can be edited before birth at the early embryonic stage. 3.Human induced pluripotent stem cells can be injected into the embryo of a pig. Which of the statements given above […]
Which of the following statements is / are correct regarding vegetative propagation of plants?
Which of the following statements is / are correct regarding vegetative propagation of plants? 1. Vegetative propagation produces a clonal population. 2. Vegetative propagation helps in eliminating the virus. 3. Vegetative propagation can be practiced most of the year. Select the correct answer using the code given below.(2014) a) 1 only b) 2 and 3 […]
Which of the following pair is/are correctly matched?
Which of the following pair is/are correctly matched? Spacecraft Purpose 1. Cassini-Huygens Orbiting the Venus and transmitting data to the Earth 2. Messenger Mapping and investigating the Mercury 3. Voyager 1 and 2 Exploring the outer […]
During a thunderstorm, the thunder in the skies is produced by the
During a thunderstorm, the thunder in the skies is produced by the 1. meeting of cumulonimbus clouds in the sky 2. lightning that separates the nimbus clouds 3. violent upward movement of air and water particles Select the correct answer using the codes given below.(2013) a) 1 only b) 2 and 3 c) 1 and […]
Fruits stored in a cold chamber exhibit longer storage life because
Fruits stored in a cold chamber exhibit longer storage life because(2013) a) exposure to sunlight is prevented b) concentration dioxide in the is increased of carbon environment c) rate of respiration is decreased d) there is an increase in humidity Answer: C Fruits respire. They give out ethylene which helps in ripening. When fruits are […]
Ball Bearings Are Used in bicycles, cars, etc., Because
Ball bearings are used in bicycles, cars, etc., because(2013) a) the actual between the is increased area of contact wheel and axle b) the effective between the is increased area of contact wheel and axle c) the effective between the is reduced area of contact wheel and axle d) None of the above statements is […]