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Biology Test 136
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Biology Test 136
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  • Question 1/10
    1 / -0.25
    Flagella is a locomotive organ of which of the following organisms?
    Solutions
    • Flagella are locomotive organ of Euglena. They are characteristic of many prokaryotes and eukaryotes and their means of motion.
    • They are generally used for propulsion.
  • Question 2/10
    1 / -0.25
    What is farming along with animal husbandry called ?
    Solutions
    Animal husbandry, also known as animal science, is the agricultural practice of breeding and raising livestock.Mixed Farming is a system of farming which involves the growing of crops as well as the raising of livestock.
  • Question 3/10
    1 / -0.25
    Blood does not coagulate inside the body due to the presence of
    Solutions
    Heparin a highly sulfated glycosaminoglycan, is widely used as an injectable anticoagulant, and has the highest negative charge density of any known biological molecule.
  • Question 4/10
    1 / -0.25
    Leech is an ectoparasite on cattle, which is
    Solutions

    • Sanguivorous are those organisms that feed on blood.

    • Leech is an ectoparasite on cattle, which is Sanguivorous.

  • Question 5/10
    1 / -0.25
    How many chambers does a mammalian heart have?
    Solutions
    • Mammals are any members of a clade of endothermic amniotes distinguished from reptiles and birds by the possession of hair, three middle ear bones, mammary glands, and a neocortex.
    • The mammalian brain regulates body temperature and the circulatory system, including the four-chambered heart.
  • Question 6/10
    1 / -0.25
    Reverse transcription was discovered by
    Solutions
    The process of synthesis of DNA from an RNA template that produces complementary DNA  is called as reverse transcription.
    • Reverse transcriptase was discovered by Howard Temin and independently isolated by David Baltimore in 1970.
  • Question 7/10
    1 / -0.25
    Which among the following is the sweetest natural sugar?
    Solutions
    • Fructose is the sweetest sugar.
    • It is the sweetest of all naturally occurring carbohydrates. The relative sweetness of fructose has been reported in the range of 1.2–1.8 times that of sucrose.
  • Question 8/10
    1 / -0.25
    Pulses are obtained from the family
    Solutions
    Pulses are the edible seeds of plants in the legume family. Pulses grow in pods and come in a variety of shapes, sizes and colors. The United Nations Food and Agriculture Organization recognizes 11 types of pulses: dry beans, dry broad beans, dry peas, chickpeas, cow peas, pigeon peas, lentils, Bambara beans, vetches, lupins and pulses nes .
  • Question 9/10
    1 / -0.25
    Who discovered the first antibiotic?
    Solutions
    • The first antibiotic, penicillin was discovered by Alexander Fleming in 1928.
    • Penicillin antibiotics were among the first medications to be effective against many bacterial infections caused by staphylococci and streptococci.
  • Question 10/10
    1 / -0.25
    How many chromosome pairs are in a human body?
    Solutions
    • In humans, there are 23 pairs of chromosomes, for a total of 46.
    • Twenty-two of these pairs are autosomes which are similar in male & female.
    • The 23rd pair is called autosome(the sex chromosome) which is different in males and females.
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