dge.tn.gov.in : Higher Secondary Biology Question Paper Directorate of Government Examination Tamilnadu

Name of the Board : Tamilnadu Directorate of Government Examination
Name of the Exam : Higher Secondary
Subject : Biology
Document Type : Question Paper
Website : dge.tn.gov.in

Download Model/Sample Question Paper :
March 2013 : https://www.pdfquestion.in/uploads/dge.tn.gov.in/6939-marchbiology.pdf
June 2013 : https://www.pdfquestion.in/uploads/dge.tn.gov.in/6939-juneBiology.pdf
Sept 2013 : https://www.pdfquestion.in/uploads/dge.tn.gov.in/6939-septBiology.pdf

DGE TN Biology Model Question Paper

PART – III :
Instructions :
(1) Check the question paper for fairness of printing. If there is any lack of fairness, inform the Hall Supervisor immediately.
(2) Use Black or Blue ink to write and pencil to draw diagrams.

Related : Directorate of Government Examination DGE Higher Secondary Computer Science Question Paper : www.pdfquestion.in/6949.html

Note : Candidate should answer Part – I (Botany) & Part – II (Zoology) in separate answerbooks.
Note :
i) Answer all the questions.
(ii) Choose the correct answer and write the option code and the corresponding
Note :
i) Answer all the questions.
(ii) Choose and write the correct answer.

Section – A

The number of fertile stamens in Ravenala madagascariensis is : a) Three (b) Four (c) Five (d) Six
The standard size of the herbarium sheet is :
a) 42 cm, 29 cm (b) 41 cm, 29 cm (c) 41 cm, 28 cm (d) 40 cm, 30 cm
Acalyphine is extracted from the plant :
a) Acalypha indica (b) Aegle marmelos (c) Cissus quadrangularis (d) Mimosa pudica
The root hairs are produced from :
a) Rhizodermis (b) Trichomes (c) Accessory cells (d) Trichoplasts
M.S. Swaminathan Research Institute is located at :
a) New Delhi (b) Mumbai (c) Lucknow (d) Chennai
Foolish Seedling disease of rice is caused by : a) Auxin (b) Gibberellins (c) Cytokinin (d) Abscisic acid
Which pathogen causes the blast disease of rice? (a) Cercospora personata
(b) Pyricularia orizae
(c) Xanthomonas citri
Trisomy is represented by (a) 2n1 (b) 2n1 (c) 2n2 (d) 2n2
The two protoplasts are fused with a fusogen called : a) Polyethylene glycol (b) Polyvinyl chloride (c) Polyethane glycol (d) Phosphoric ethane
(Fr) Guflawards flat
The innermost layer of cortex is :
a) Epidermis (b) Hypodermis (c) Endodermis (d) Pericycle
The Okazaki fragments are linked by the enzyme : a) Helicase (b) Topoisomerase
(c) Ligase (d) DNA polymerase
The gas evolved during Photosynthesis is : a) Carbondioxide (b) Nitrogen (c) Hydrogen (d) Oxygen
Malvaceae is placed in the series :
a) Thalamiflorae (b) Inferae
(c) Heteromerae (d) Disciflorae

Section – B

Note : Answer any seven questions.
Write the sub-classes of Dicotyledonae.
Mention the binomial of any three medicinal plants of Malvaceae.
Write any three functions of epidermal tissue system.
Draw and label the structure of xylem vessel.
Draw and label the structure of Lamp brush chromosome.
Write any three Transgenic dicotyledonous plants.
Write any three differences between Photorespiration and Dark respiration.
Define Respiratory quotient.
Lorail artala offlooara, grainford GTTan 2
What is Richmond Lang effect ?
What are Biofertilizers ? Give an example.

Section – C

Write short notes on Mutagenic agents.
Write the benefits from the release of genetically modified micro-organisms into the Environment.
Explain Genongs Respiroscope experiment.
Bring out the Physiological effects of Auxin.
Write the economic importance of rice.

Section – D

Note : i) Answer any two questions.
(ii) Draw diagrams wherever necessary.
Describe Musa paradisiaca in technical terms.
Describe the primary structure of Dicot root.
Write an essay on DNA recombinant technology.
What is Glycolysis ? Describe its various steps. (Flowchart or Explanation)

Part II :
Zoology
SECTION – A :
Note : i) Answer all the questions.
(ii) Choose and write the correct answer.
Sperms are stored in the :
a) testis (b) prostate gland (c) epididymis (d) seminal vesicle
The method which can give skeletal model of a protein from its results, on its atomic – details :
a) Electrophoresis (b) -ray crystallography (c) Chrometography (d) Computed tomography
Which fish keeps the fertilized eggs guarded in its mouth ? (a) Thilapia (b) Rohu (c) Mirgal (d) Platty
Peacomb is one of the important breed character of : a) Plymouth rock (b) Brahma (c) Leghorn (d) Aseel
During root canal treatment the cavity of the tooth is filled with a sealing paste made of
a) calcium carbonate (b) iodised salt
(c) gutta percha resin (d) pottasium salt
What is the name for mobile genetic elements (a) Plasmids (b) Pili (c) Bar body (d) Transposons