4426: Which of the following statements is/are correct?
1. Viruses lack enzymes necessary for the generation of energy.
2. Viruses can be cultured in any synthetic medium.
3. Viruses are transmitted from one organism to another by biological vectors only.
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
4427: The messages received by and transmitted from the brain to the various parts of the body take the form of:
(a) Nervous impulses
(b) Chemical impulses
(c) Mechanical impulses
(d) Automatic impulses
4428: With reference to the United Nations, consider the following statements:
1. The Economic and social council (ECOSOC) of UN consists of 24 member States.
2. It is elected by a 2/3rd majority of the General Assembly for a 3-year term.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
4429: Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
(a) Hydrogen, Oxygen, Sodium
(b) Carbon, Hydrogen, Nitrogen
(c) Oxygen, Calcium, Phosphorus
(d) Carbon, Hydrogen, Potassium
4430: A new type of El Nino called El Nino Modoki appeared in the news. In this context, consider the following statements:
1. Normal El Nino forms in the Central Pacific ocean whereas El-Nino Modoki forms in Eastern Pacific ocean.
2. Normal EI Nino results in diminished hurricanes in the Atlantic ocean but El Nino Modoki results in a greater number of hurricanes with greater frequency.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2