BIOLOGY TIMES — January 2018

(avery) #1

  1. Match the following
    Column I Column II
    A. ELISA 1. Humulin
    B. α-1-antitrypsin 2. Gene therapy
    C. Retroviral vector 3. AIDS
    D. Ely lily 4. Emphysema
    (a) A - 3, B - 4, C - 2, D - 1
    (b) A - 4, B- 3, C - 1, D - 2
    (c) A - 1, B - 4, C - 3, D - 2
    (d) A - 2, B - 3, C - 1, D - 4

  2. The process of plasmolysis is usually
    (a) Reversible (b) Irreversible
    (c) Active (d) Both A and C

  3. Choose the correct match Bladderwort,

    Sundew,Venus Flytrap
    (a) Nepenthes, Dionaea, Drosera
    (b) Nepenthes, Utricularia,Vanda
    (c) Utricularia, Drosera, Dionea
    (d) Dionea, Trapa,Vanda

  4. Phytochrome is
    (a) Flavoprotein (b) Glycoprotein
    (c) Lipoprotein (d) Chromoprotein

  5. Which one of the following shows chorophyllous
    thallophyte?
    (a) Cycas (b) Pinus
    (c) Spirogyra (d) Volvox

  6. Match the columns and select the correct
    combination
    Column I Column II
    A. Ovule 1) Endosperm
    B. Funiculus 2) Aril
    C. Nucellus 3) Seed
    D. Polar nuclei 4) Perisperm
    (a) A - 3, B - 2, C - 1, D - 4

    (b) A- 3, B - 2, C - 4, D - 1

    (c) A- 1, B- 2, C - 3, D - 4

    (d) A- 2, B - 3, C - 1, D – 4

  7. When one gene hides the effect of another gene,
    the interaction factor is known as:
    (a) duplicate factor
    (b) complementary factor
    (c) supplementary factor
    (d) epistatic factor

  8. Protective covering over radicle during seed
    germination is
    (a) Coleorhiza (b) Coleoptile

    (c) Suspensor (d) Epithelium

  9. Cell theory is not applicable for
    (a) Virus (b) Bacteria
    (c) Fungi (d) Algae
    20. What can be correct for following food web?


(a) J   is  decomposer                       (b)    C   is  herbivore
(c) I is scavenger (d) F is carnivore


  1. Information transfer from RNA to DNA is called
    (a) DNA polymerase (b) Ligase
    (c) Reverse transcription (d) Endonuclease

  2. Given below is a sample of portion of DNA strand
    giving the base sequence on the opposite strands.
    What is so special shown in it?
    5’ - GAATTC - 3’
    3’ - CTTAAG - 5’
    (a) Palindromic sequence of base pairs
    (b) Start codon at the 5’ end
    (c) Deletion mutation
    (d) Replication completed

  3. The only plant cell without the nucleus among the
    following are:
    (a) Cambium cells (b) Xylem vessel

    elements
    (c) Root hairs (d) Companion cells

  4. Which microorganism is growing on potato
    dextrose agar containing petriplate?


(a) Bacteria (b) Fungi
(c) Virus (d) Viriods


  1. ETC of photosynthesis process is
    (a) Bound to thylakoid membrane

    (b) Present in stroma
    (c) Bound to outer chloroplast membrane

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