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Biology Test 51
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Biology Test 51
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  • Question 1/30
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    Metafemale

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    According to genetic balance theory, X/A=1.5 will make the individual
    Solutions
    Metafemale
  • Question 2/30
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    I4

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    Pollen grains of a plant whose 2n = 28 are cultured to get callus by tissue culture method. What would be the number of chromosomes in the cells of the callus?
    Solutions
    I4
  • Question 3/30
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    father objects which is corrected by using convex lens

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    Due to contraction of eyeball, a longsighted eye can see only..
    Solutions
    father objects which is corrected by using convex lens
  • Question 4/30
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    AIDS

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    Which of the following diseases has posed a serious threat the world over ?
    Solutions
    AIDS
  • Question 5/30
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    Cancer cells spread through the blood or lymphatic system to other sites or organs

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    " Metastasis " is the process by which
    Solutions
    Cancer cells spread through the blood or lymphatic system to other sites or organs
  • Question 6/30
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    anemophily

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    Pollination by wind is called?
    Solutions
    anemophily
  • Question 7/30
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    Cryptic coloration

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    Which of the following is not an example of a plant defense against herbivory?
    Solutions
    Cryptic coloration
  • Question 8/30
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    The eukaryot has a nucleus, and the prokaryot does not.

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    What is the main difference between the prokaryot and the eukaryot?
    Solutions
    The eukaryot has a nucleus, and the prokaryot does not.
  • Question 9/30
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    four are eukaryotes and two are prokaryotes

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    Of the six kingdoms now recognized .
    Solutions
    four are eukaryotes and two are prokaryotes
  • Question 10/30
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    Recombination of linked genes

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    Crossing over in diploid organisms is responsible for
    Solutions
    Recombination of linked genes
  • Question 11/30
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    A-(4),b-(1),C-(3),D-(2)

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    Match List-I with List-II and select the correct answer using the codes given below the lists : List-I                      List-II A. Fruit                    1. Ovule B. Seed                    2. Leaf C. Wood                   3. Stem D. Starch                  4. Ovary
    Solutions
    A-(4),b-(1),C-(3),D-(2)
  • Question 12/30
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    maintain homeostasis

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    All living things must.
    Solutions
    maintain homeostasis
  • Question 13/30
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    0.007 mm

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    White blood corpuscles in the human body have a diameter of approximately?
    Solutions
    0.007 mm
  • Question 14/30
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    UAG

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    Which one of the following triplet codons is a chain termination codon?
    Solutions
    UAG
  • Question 15/30
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    pleural membrane

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    Lungs are enclosed in ?
    Solutions
    pleural membrane
  • Question 16/30
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    to see if the cartilaginous growth plates have been converted to bone

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    A parent with a rather short child wonders whether the child is still growing. The physician requests that the child have an X-ray to examine the bones. What is he looking for?
    Solutions
    to see if the cartilaginous growth plates have been converted to bone
  • Question 17/30
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    A-(2),B-(1),C-(3),D-(4)

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    Match List-I((Physiological processes ) with List-II(Cell organelles ) and select the correct answer using the codes given below the lists: List-I                       List-II A. Phptosynthesis       1. Plasma membrane B. Mineral uptake       2. Chloroplast C. Respiration            3. Mitochondria D. Protein synthesis     4. Ribosomes
    Solutions
    A-(2),B-(1),C-(3),D-(4)
  • Question 18/30
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    2, 4 - D

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    Which of the following hormones does not naturally occur in plants?
    Solutions
    2, 4 - D
  • Question 19/30
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    Both A and R are true and R is the correct explanation of A

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    Assertion (A): "DNA Finger printing" has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.Reason (R): Trace evidences such as hairs, saliva and dried semen are adequate for DNA analysis.
    Solutions
    Both A and R are true and R is the correct explanation of A
  • Question 20/30
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    Citric Acid

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    Which of the following is not a mutagenic agent?
    Solutions
    Citric Acid
  • Question 21/30
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    Carica papaya

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    Endospermic seeds are found in?
    Solutions
    Carica papaya
  • Question 22/30
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    Coniferopsida

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    Pinus belongs to the class ________.
    Solutions
    Coniferopsida
  • Question 23/30
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    They mark the division between each of the five anatomical regions of the vertebral column.

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    Which of the following is NOT a feature of intervertebral disks?
    Solutions
    They mark the division between each of the five anatomical regions of the vertebral column.
  • Question 24/30
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    vitamin C

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    The vitamin which is generally excreted by humans in urine is?
    Solutions
    vitamin C
  • Question 25/30
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    Prostaglandin

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    Which of the following hormones does not contain a polypeptide?
    Solutions
    Prostaglandin
  • Question 26/30
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    Both A and R are true and R is the correct explanation of A

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    Assertion (A): In a motion picture usually 24 frames are projected every second over the whole length of the film.Reason (R):  An image formed on the retina of eye persists for about 0.1 s after the removal of stimulus.
    Solutions
    Both A and R are true and R is the correct explanation of A
  • Question 27/30
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    Eustachian tube

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    Which of the following is not in the inner ear ?
    Solutions
    Eustachian tube
  • Question 28/30
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    harmless stimulus no longer produces an escape response.

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    In an animal, habituation has taken place when a.
    Solutions
    harmless stimulus no longer produces an escape response.
  • Question 29/30
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    not discovered the law of independent assortment

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    If Mendel had studied 7 traits using a plant with 12 chromosomes instead of 14, he would have.
    Solutions
    not discovered the law of independent assortment
  • Question 30/30
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    Iodine

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    Goitre or abnormal enlargement of the the thyroid gland is caused by the deficiency of
    Solutions
    Iodine
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