Q. Dengue virus causes high fever, rashes and reduces the number of a particular type of blood cells. Those blood cells are -
1) Monocytes
2) Platelets
3) Eosinophils
4) Neutrophils
Q. Bats detect obstacles in their path by receiving the reflected -
1) Infrasonic waves
2) Ultrasonic waves
3) Radio waves
4) Microwaves
Q. Which one of the following statements is not correct?
1) Human eye is a refracting system containing a diverging lens
2) The retina of the human eye contains millions of light sensitive cells, called rods and cones, which convert the light into electrical messages
3) Every image that is focused on the retina is upside down
4) We need both eyes to judge the relative positions of objects accurately
Q. Tendons through which muscles are connected to bones are tightly compacted bundles of which one of the following long fibrous protein?
1) Fibrin
2) Collagen
3) Elastin
4) Cellulose
Q. Which one of the following is the scientific name of the causal organism of elephantiasis ?
1) Ascaris lumbricoides
2) Culex pipiens
3) Wuchereria bancrofti
4) Fasciola hepatica
Q. Melanin is the natural pigment that gives colour to human skin, hair and the iris. It provides protection against
1) Ultraviolet radiation
2) Infrared radiation
3) X-ray radiation
4) Short wave radio radiation
Q. Which one of the following vitamins has a role in blood clotting ?
1) Vitamin A
2) Vitamin D
3) Vitamin E
4) Vitamin K
Q. The term Probiotic is applied to -
1) Organic food
2) Antacid
3) Antibiotic
4) Live microbial food/ feed supplement
Q. Which one of the following microbes causes acidificaiton and curding of milk?
1) Lactic Acid Bacilus
2) Clostridium botulinum
3) Vibrio cholerae
4) Saccharomyces cerevisiae
Q. Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of -
1) Omega-3 fatty acids
2) Vitamin A
3) Vitamin B
4) Vitamin C
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