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Biology Test 55
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    Vitamin K

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    Which one among the following vitamins is necessary for blood clotting?
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    Methyl alcohol

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    The offending substance in the liquor tragedies leading to blindness etc.is
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    They both produce carbohydrates and oxygen.

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    In which way are plants in a sunny mountain meadow and sulfur bacteria in a deep-sea volcanic vent alike?
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    asphyxia

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    When the blood contains a high percentage of CO2 and a very low percentage of O2, the breathing stops and the person becomes unconscious. This condition is known as?
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    sympatric populations of species with similar ecological niches.

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    Resource partitioning would be most likely to occur between?
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    Cornea

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    In eye donation. which one of the following parts of donor's eyes is utilized ?
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    A is false but R is true

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    Assertion (A): Unsaturated fats are more reactive compared with the saturated fats.Reason (R):  Unsaturated fats have only single bonds in their structure.
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    Surgical fusion of two adjacent vertebrae will alleviate the problem and cause no reduction in flexibility.

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    Which of the following is NOT a feature of having a herniated vertebral disk?
  • Question 9/30
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    indicating relative position of genes in chromosomes

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    Determination of percentage of crossing over between two linked genes is important in
  • Question 10/30
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    Glutamic acid by valine in ??chain

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    Which amino acid is substituted in sickle cell anaemia.
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    Starfish

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    Tube feet is the locomotory organ in:
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    Insulin

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    Which one of the following is not a plant hormone ?
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    CO2 from fossil fuels

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    Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere in future?
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    Pheretima Posthuma

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    Which one of the following species of earthworm is NOT recommended for vermicomposting?
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    White blood cells

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    Leukaemia or blood cancer is characterised by abnormal increase of the _____ .
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    Somaclonal variations

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    Variations observed during tissue culture of some plants are known as
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    Codons are present in m-RNA and anticodons in t-RNA

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    Which one of the following is correct?
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    backbone

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    what protect the spinal cord
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    Thiamine

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    The vitamin useful in alcoholism is:
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    natural selection

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    Of the conditions that can cause a deviation from Hardy Weinberg equilibrium, only _____ causes an adaption to the environment:
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    Shoot tip culture

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    Virus free plants can be obtained through
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    nitrogen, phosphorus and potassium

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    The macro-nutrients provided by inorganic fertilizers are -
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    chance

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    Genetic drift occurs by______.
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    Kerosene

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    Sodium metal is kept under______.
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    A-(1),B-(3),C-(4),D-(2)

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    Match the hormones List-I with items in List-II and select the correct answer using the codes given below the lists : List-I                      List-II A. Adrenalin               1. Anger,fear, danger B. Estrogen                2. Attracting partners of smell through sense C. Insulin                   3. Females D. Pheromones            4. Glucose
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    Iterative

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    Occurrence of similar morphological forms in clade at different interval is termed as?
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    Cells

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    In the human body, the basic building blocks are _____ ?
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    Turner’s syndrome

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    In human beings 45 chromosomes/single X/XO abnormality causes
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    Keystone species

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    The species, though insignificant in number, determine the existence of many other species in a given ecosystem. Such species is known as?
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    the contractile vacuole disappears

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    When a fresh water protozoan is placed in marine water________.
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