WBJEE Entrance Exam Question Paper

Will you please provide the Question Paper of WBJEE Entrance Exam ?

[Kiran Chandar]

Here is the list of few questions of WBJEE Entrance Exam Question Paper which you are looking for .

Question 1

A prokaryotic cell lacks:Anucleus
Bnuclear membrane
Cmembrane bound organelles
Dall of the above
Question 2

Extranuclear inheritance is a consequence of the presence of genes in:AER and mitochondria
Blysosomes and ribosomes
Cribosomes and chioroplast
Dmitochondria and chloroplasts
Question 3

Vesicles of Smooth Endoplasmic Reticulum (SER) are most likely on their way to:Aplastids
BI ysosomes
Cnucleolus
DGolgi apparatus
Question 4

Lysosomes are the store house of:AATP
Bsugar
Cproteins
Dhydrolytic enzymes
Question 5

lipids are insoluble in water, because lipid molecules are:Aneutral
BZwitter ions
Chydrophobic
Dhydrophilic
Question 6

Which of the following is the simplest amino acid?AGlycine
BAlanine
CTyrosine
DAsparagine
Question 7

Carbohydrates, ingested in the diet, are hydrolyzed by the enzyme:Apepsin
Bcellulose
Ca-amylase
Dglycosidase
Question 8

Stomach is the site of digestion mainly for:Afats
Bproteins
Ccarbohydrates
Dall of these
Question 9

Which proteolytic enzyme induces lysis of fibrin during Hbrinolysis?AFibrin
BThrombin
CPlasmin
DPlatelet factor-VIl
Question 10

Which of the following enzymes is used to join bits of DNA?ALigase
BPrimase
CEndonuclease
DDNA polymerase
Question 11

All eukaryotic genes contain two kinds of base sequences. Which of the following plays role in protein synthesis?AIntrons
BExons
CElectrons
DBoth (a) and (b)
Question 12

The genetic material of prokaryotic cell is called:Anucleus
Bnucleolus
Cnucleoid
Dcentromere
Question 13

In prokaryotes, the genetic material is:Alinear DNA with histones
Bcircular DNA with histones
Clinear DNA without histones
Dcircular DNA without histones
Question 14

The direction of DNA replication is from:Aamino acid end
B3’ end towards 5’ end
C5’ end towards 3’ end
Damino terminus to carboxy terminus
Question 15

In operon concept, regulator gene functions as:Arepresser
Bregulator
Cinhibitor
Dinitiator
Question 16

The importance of meiosis lies in:Abringing discontinuous variations
Baddition in the number of chromosomes
Creduction in the number of chromosomes
Dmaintaining the number of chromosomes
Question 17

In mitotic cell division, the division of centromere and the division of chromatid occurs between:Aana phase and telophase
Bprophase and metaphase
Ctelophase and interphase
Danaphase and metaphase
Question 18

In which stage of the first meiotic division, each chromosome undergoes longitudinal division to give rise to two sister chromarids?AZygotene
BDiplotene
CDiakinesis
DPachytene
Question 19

Mirabilis jalapa is an example of:Acomplete dominance
Bsupplementary gene
Cincomplete dominance
Dcomplementary gene
Question 20

Which of the following is dominant character according to Mendel?ADwarf plant and yellow fruit
BTerminal fruit and wrinkled seed
CWhite testa and yellow pericarp
DGreen coloured fruit and rounded seed
Question 21

Lack of independent assortment of genes A and B in fruit fly Drosophila is due to:Arepulsion
Blinkage
Ccrossing-over
Drecombination
Question 22

When two mutations are located in the same functional unit or in different functional units then it is confirmed by:Atest cross
Bback cross
Creciprocal cross
Dcomplementat ion test
Question 23

Prototherians are the connecting links between:Aamphibians and ayes
Breptiles and mammals
Cfishes and amphibians
Dreptiles and amphibinas
Question 24

The pioneers in the field of ‘organic evolution’ are:AKarl Landsteiner, Hugo de Vries, Malthus
BDarwin, Hugo de Vries, Lamarck, Huxley
CLamarck, Karl Landsteiner, Maithus, Hugo de Vries
DDarwin, Lamarck, Karl Landsteiner, Hugo de Vries
Question 25

Darwin finches are related to which of the following evidences?AFossils
BEmbryology
CAnatomy
DGeographical distribution

Sir I am looking for the WBJEE Entrance Exam Biology Question Paper as I am preparing for the exam so can give me the same

[Kiran Chandar]

Hi friend below I am giving you the West Bengal Joint Entrance Examinations Board Biology Question Paper


1. Passage cells help in
(A) transport of water towards pericycle (B) transport of water towards epiblema
(C) absorption of water from soil (D) passage of CO2
towards stomata
Ans : (A)
Hint : Passage cells are endodermal cells lacking casparian strip which allow comparatively faster movement of
water into stele.
2. Medullary rays are tissues made up of
(A) phloem parenchyma (B) xylem parenchyma
(C) sieve tube (D) sclerenchyma
Ans : (B)
Hint : Medullary rays or Wood rays are made up of xylem parenchyma.
3. An allosteric inhibitor of the enzyme acts by binding to the
(A) substrate (B) product
(C) catalytic site of the enzyme (D) non-catalytic site of the enzyme
Ans : (D)
Hint : Allosteric inhibitor attaches with non catalytic site of enzyme called ‘Allosteric site’
4. A set of genes will be in a complete linkage when the progeny phenotypes for parental (P) and recombinant (R) types
are
(A) P = 0%, R = 100% (B) P = 50%, R = 50%
(C) P < 50%, R > 50% (D) P = 100%, R = 0%
Ans : (D)
Hint : Since there is complete linkage, parental combinations are 100% and recombinant types are 0%
5. Which one of the following statements is WRONG in relation to transgenic Bt cotton plant?
(A) Crop yield loss due to attack by Bacillus thuringiensis bacterium is reduced
(B) Crop yield loss due to attack by lepidopteran insect pests is reduced
(C) The use of chemical insecticides in the cotton field is minimized
(D) Better quality cotton is produced
Ans : (A)
Hint : Bacillus thuringiensis does not attack cotton plants and hence cannot reduce crop loss.
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WBJEEM - 2015
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6. Which one of the following natural polymers is found both in insects and fungi?
(A) pectin (B) chitin
(C) cellulose (D) suberin
Ans : (B)
Hint : Chitin is a natural structural polysaccharide, which is found in both insects and fungi.
7. Which one of the followings in an in situ method of biodiversity conservation?
(A) national park (B) botanical garden
(C) zoological garden (D) scientific laboratory
Ans : (A)
Hint : Botanical garden, zoological parks and scientific laboratory are ex situ methods of conservation.
8. Nucleosome contains
(A) only histone protein (B) both DNA and histone protein
(C) only DNA (D) both DNA and RNA
Ans : (B)
Hint : Nucleosome contains both DNA and histone protein.
9. Which one of the following matching pairs is WRONG?
(A) Mollusca-Pseudocoel (B) Cnidaria-Nematocyst
(C) Annelida-Chloragogen cells (D) Echinodermata-Water vascular system
Ans : (A)
Hint : Mollusca has schizocoelom [true coelom], while Aschelminthes has pseudocoelom.
10. Which one of the following matching pairs is WRONG?
(A) Shell fish-Pisces (B) Silver fish-Arthropoda
(C) Cuttle fish-Mollusca (D) Star fish-Echinodermata
Ans : (A)
Hint : Shell fish are edible aquatic invertebrates, including various species of molluscs, crustaceans and
echinoderms.
11. Third stage larva of Wuchereria bancrofti carried by Culex mosquito is called
(A) cysticercus (B) merozoite
(C) microfilariae (D) trophozoite
Ans : (C)
Hint : Third stage of microfilariae are larva of Wuchercria bancrofti, infective to human.
12. Persons suffering from sickle cell anaemia normally DO NOT suffer from
(A) cholera (B) malaria
(C) high blood pressure (D) hepatitis
Ans : (B)
Hint : Erythrocytic phase of Plasmodium fails to complete in sickle shaped RBCs, hence persons with sickle cell
anaemia do not suffer from malaria.
13. Two related but geographically isolated species are known as
(A) sibling species (B) sympatric species
(C) taxonomic species (D) allopatric species
Ans : (D)
Hint : In allopatric speciation, two related species are isolated by geographical barriers.


14. Which hormone is responsible for reabsorption of water in kidney?
(A) ADH (B) STH
(C) ACTH (D) GTH
Ans : (A)
Hint : ADH is secreted under water stressed condition. It helps in reabsorption of more water in kidney and maintain
body fluid volume.
15. Wildlife Protection Act India was implemented in the year
(A) 1982 (B) 1988
(C) 1972 (D) 1970
Ans : (C)