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Biology Plant Anatomy And Physiology Difficulty: Medium

As the male gametes in angiosperms have to travel through the pollen tube to reach the egg, the process of sexual fusion is called

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The X-chromosome or the X-body was first observed by Which one of the following sets is correctly matched? Consider the following statements and choose the correct answer: 1. The rate of respiration is directly proportional to the oxygen concentration in plants 2. Van't Hoff's coefficient is generally five (Q 10 =5) 3. Generally in case of injured plant tissues the rate of respiration is increased for the time being 4. The rate of respiration is directly proportional to the respiratory substrate present in the tissues Which of the following ” Tikka disease” is related with the crop? The H 5 N 1 virus which causes bird flu was first discovered in