mcq biology

DBT BET JRF Exam 2017 Model Questions with Answer Key and Explanations Part 1


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DBT BET JRF Exam, 2017
Model Question Paper with Answer Key and Explanations

(Biology / Life Sciences MCQ: Multiple Choice Questions)

(1).  _____ can serve as an alternative to ethidium bromide to stain DNA for detection on gels

a.       Mitomycin C
b.      Acridine orange
c.       SYBR Green I
d.      Acriflavine

(2). _____ is a sensitive technique to find out the number of template molecules originally present in a PCR reaction.

a.       Hot start PCR
b.      Real time PCR
c.       AP PCR
d.      Reverse Transcriptase PCR

(3).  Using __________ it is possible to generate fluorescence in quantitative PCR reactions

a.       TaqMan probes
b.      Molecular beacons
c.       Scorpion probes
d.      All of the above

(4). For whole genome amplification, creating very long DNA products ________ method can be employed with great success

a.       MDA
b.      PEP
c.       iPEP
d.      DOP

(5).  ________ polymerase has the ability to add ~70,000 nucleotides every time it binds to primer and has a very low error rate.

a.       Taq polymerase
b.      Tli polymerase
c.       Pfu polymerase
d.      Bacteriophage ϕ 29 polymerase

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Botany lecture notes

Kerala PSC Botany Lecturer Exam 2017 Model Question Paper 3/3


psc botany lecture questions

Kerala PSC Botany Lecturer / Assistant Professor Model Question Paper 2017 Part 3/3

Model/Sample Question Paper of Kerala PSC Botany Lecturer/Assistant Professor Recruitment Examination to be conducted by Kerala Public Service Commission Question for the appointment of Botany Lecturer/Assistant Professor in Government Colleges of Kerala under the Directorate of Collegiate Education, Trivandrum, Kerala. Questions are in MCQ (Multiple Choice Questions) format.

Botany Lecturer Test: Model Questions Set – 3/3

(1). The concept of raising the profile of a particular species to successfully leverage more support for biodiversity conservation of biodiversity is denoted as:

a.       Keystone species concept
b.      Flagship species concept
c.       Umbrella species concept
d.      Indicator species concept

(2). Gelatinous fibres are:

a.       Long sclerenchymatous cells with highly lignified secondary wall
b.      Short sclerenchymatous cells with slightly lignified secondary wall
c.       Fibres with cellulosic secondary cell wall
d.      Fibres with hemicellulosic secondary cell wall

(3). Which of the following is a C3 plant?

a.       Maize
b.      Sugarcane
c.       Sorghum
d.      Rice

(4). The wrong rejection of a true null hypothesis is denoted as:

a.       Type I error
b.      Type II error
c.       Type III error
d.      Type IV error

(5). Carl Woese is best known for his contribution in:

a.       Gene mapping
b.      Three domain system of classification
c.       Genetic engineering
d.      Shotgun sequencing

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Botany lecture notes

Botany Lecturer Recruitment Test 2017 by Kerala PSC: Model Question Paper 2/3


botany college lecturer exam by kpsc

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Kerala PSC Botany Lecturer / Assistant Professor Model Question Paper 2017 (Set 2/3)

Model/Sample Question Paper of Kerala PSC Botany Lecturer/Assistant Professor Recruitment Examination to be conducted by Kerala Public Service Commission Question for the appointment of Botany Lecturer/Assistant Professor in Government Colleges of Kerala under the Directorate of Collegiate Education, Trivandrum, Kerala. Questions are in MCQ (Multiple Choice Questions) format.

Botany Lecturer Test: Model Questions Set – 2/3

(1). The common intermediate in the synthesis of both adenine and guanine (purines) is

a.       IMP
b.      UMP
c.       AMP
d.      GMP

(2). What is Dobson?

a.       The unit of measure of ozone in the atmosphere
b.      The unit of the measure of thickness of ozone layer
c.       The unit of measure of concentration of CFC to destroy 1 mm of ozone layer
d.      The unit to measure the ozone hole

(3). The metabolite that bridges the gap between Glycolysis and the Kreb’s cycle is

a.       Oxaloacetate
b.      Pyruvate
c.       Acetyl Co-A
d.      Citrate

(4). Which of the following statement correctly describe the internal structure of a monocot root?

a.       Vascular bundles numerous, radial, with endarch xylem
b.      Vascular bundles numerous, radial with exarch xylem
c.       Vascular bundles limited in number, radial with endarch xylem
d.      Vascular bundles limited in number, radial with exarch xylem

(5). Which of the following is NOT a characteristic of K-selected species?

a.       Large number of progenies
b.      Parental care
c.       Delayed reproductive maturity
d.      Limited number of progenies

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Botany lecture notes

Kerala PSC Botany Lecturer Recruitment Test 2017: Model Question Paper 1/3


monothecous reniform anthers of hibiscus

Kerala PSC Botany Lecturer / Assistant Professor Model Question Paper 2017

Model/Sample Question Paper of Kerala PSC Botany Lecturer/Assistant Professor Recruitment Examination to be conducted by Kerala Public Service Commission Question for the appointment of Botany Lecturer/Assistant Professor in Government Colleges of Kerala under the Directorate of Collegiate Education, Trivandrum, Kerala. Questions are in MCQ (Multiple Choice Questions) format.

Botany Lecturer Test: Model Questions Set – 1/3

(1). Enzymes used to isolate protoplast are:

a.       Cellulase and lipase
b.      Pectinase and lipase
c.       Cellulases and pectinases
d.      Proteolytic enzymes and cellulose

(2). Which of the following statement describes the androecium of Malvaceae

a.       Numerous stamens, dithecous anthers
b.      Monadelphous, dithecous anthers
c.       Monadelphous, monothecous anthers
d.      Synandrous, monothecous anthers

(3). Which chemical induces fusion of the protoplast in somatic hybridization?

a.       Boric acid
b.      Polyethelene glycol
c.       Phosphoenol pyruvate
d.      Ethylene

(4). A continuous system formed by protoplasts and plasmodesmata in a tissue is

a.       Apoplast
b.      Protoplast
c.       Symplast
d.      Chloroplast

(5). Two or more related species that are morphologically identical but are incapable of producing fertile hybrids are called as:

a.       Biological species
b.      Sibling species
c.       Vicariance
d.      Typological species

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Botany lecture notes

Sclerenchyma: Structure, Classification and Functions with PPT


sclerenchymatous tissue ppt

Sclerenchyma
(Structure, Types and Functions of Sclerenchymatous Cells in Plants)

What are Sclerenchymatous Cells?

Ø  Sclerenchyma is a simple permanent tissue in plants.

Ø  Sclerenchymatous cells are dead at their maturity.

Ø  Cells do not have protoplast when they completely developed.

Ø  They have thick secondary cell wall.

Ø  The secondary cell wall is lignified and very hard.

Ø  Most of the sclerenchymatous cells show intrusive growth.

Different Types of Sclerenchymatous Cells in Plants:

Ø  Based on size, two types of sclerenchyma are described.

  (I).   Sclereids

(II).    Fibres

(I). Sclereids:

Ø  Sclereids are short sclerenchymatous cells.

Ø  They are also called as stone cells.

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