M.Sc. (Botany) (Semester-II) (CBCS) Examination, 2017
Cell and Molecular Biology of Plants
Day Date: Monday, 24-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions
Attempt totally five questions.
Question No. 1 is compulsory.
Attempt any two questions from question No. 2 to 4
Attempt any two questions from question No. 5 to 7
Figures to right indicate full marks.
Q.1 Choose the correct answer from given alternatives 14
……… proteins are firmly associated with the memberane.
Extrinsic Integral D
Peripheral External
Neutral fats like ………… are absent in cell membrane.
Cholesterol Ergosterol
Triglycerides Phytosterol
A membrane which allows the passage of the solvent but not
of solute is called…….. membrane.
Permeable Semi permeable a
Transparent Rigid
The golgi complex play an important role in………
Glycosylation Sulphatain I
Plasma membrane formation All of the above
The rough endoplasmic reticulum is so called because the
membranes are covered with …………….. giving them a
rough appearance.
Ribosomes Chloroplasts R
Mitochondria Liposomes
Histones are rich in basic amino acids, arginine and lysine,
but completely lack………..
Tyrosine Tryptophan I
Proline Histidine
Page 2 of 3
The electron transport chain of ……… is similar to the
mitochondrial respiratory chain, but electron flow is in the
opposite direction.
Leucoplast Rodoplast I
Pheoplast Chloroplast
In colchicines treated dividing cells, mitosis is blocked at
metaphase because of the breakdown of the spindle
microtubules leading to ………………
Monoploidy Diploidy I
Nullyploidy Polyploidy
The phosphoesterases that require a terminus for hydrolysis
and cut off terminal nucleotides are called…..
Polymerase Endonucleases I
Exonucleases Correndonucleases
10) The starting amino acid in the synthesis of most of the
eukaryotic protein chains is …….
Lysine Arginine I
Methionine Histidine
11) The wobble hypothesis was proposed by ………
Watson (1965) Crick (1966) I
Sanger (1977) Watson and Crick (1953)
12) …………….. has direct role in apoptosis.
Nitric oxide Adenylcyclase I
Camp Cytochrome C
13) Chromosome mapping is done by using………
GISH FISH I
GISH and FISH None of the above
14) Indirect immunofluorescence involves fluorescently
labeled
Immunoglobulin specific antibodies
Antigen specific antibodies
Heptane specific antibodies
Carrier specific antibodies
I
Q2 Describe the characters of plasma membrane. 07
Describe the structure and function of golgi bodies. 07
Q3 Describe any two models suggesting the structure of plasma
membrane.
07
Comment upon the gene expression and the nucleochloroplastic
interaction.
07
Page 3 of 3
Q4 Describe the structure and role of the plasmodesmata in the
movement of molecules.
07
Explain the biogenesis and evolutionary origin of mitochondria. 07
Q5 Write briefly on
Du Praw's model of chromosome. 05
Control mechanism of cell division. 05
Methods of DNA detection. 04
Q6 Describe:
In situ hybridization. 05
Properties of genetic code 05
Confocal microscopy. 04
Q7 Writes notes on any three 14
Wobble hypothesis.
ELISA technique.
Okazaki fragments.
Retinoblastoma.