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WBJEE Biology Previous Year (2009) - JEE MCQ


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30 Questions MCQ Test - WBJEE Biology Previous Year (2009)

WBJEE Biology Previous Year (2009) for JEE 2024 is part of JEE preparation. The WBJEE Biology Previous Year (2009) questions and answers have been prepared according to the JEE exam syllabus.The WBJEE Biology Previous Year (2009) MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for WBJEE Biology Previous Year (2009) below.
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WBJEE Biology Previous Year (2009) - Question 1

The length of DNA hgaving 23 base pair is

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 1

Distance between adjacent base pairs = 3.4Å

WBJEE Biology Previous Year (2009) - Question 2

Which Ig is produced in primary immune response?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 2

IgM is produced in primary response to the given antigen

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WBJEE Biology Previous Year (2009) - Question 3

The average diameter of Red Blood Corpuscles of man is

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 3

The average diameter of RBC of man is 7.2 µ m

WBJEE Biology Previous Year (2009) - Question 4

FAD is electron acceptor during oxidation of which of the following?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 4

FAD is electron acceptor during oxidation of succinic acid to fumaric acid

WBJEE Biology Previous Year (2009) - Question 5

The chemical nature of hormones secreted by α & δ cells of pancreas is –

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 5

Hormones produced by α cells (glucagon) and β cells (somatostatin) are polypeptide

WBJEE Biology Previous Year (2009) - Question 6

The genetic material of Rabies virus is

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 6

The genetic material of Rabies virus is ss RNA

WBJEE Biology Previous Year (2009) - Question 7

T-lymphocyte is produced in

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 7

T-lymphocyte are produced in bone marrow but mature in thymus

WBJEE Biology Previous Year (2009) - Question 8

How many ATP molecules are obtained from fermentation of 1 molecule of glucose?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 8

Two molecules of ATP are produced by fermentation of one molecule of glucose

WBJEE Biology Previous Year (2009) - Question 9

Number of nitrogenous bases in a Codon is

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 9

Three nitrogenous bases are found in a codon.

WBJEE Biology Previous Year (2009) - Question 10

A character which is expressed in a hybrid is called

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 10

Dominant gene is expressed in a hybrid

WBJEE Biology Previous Year (2009) - Question 11

In which stage of cell division chromosomes are most condensed?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 11

Chromosome is most condensed in metaphase

WBJEE Biology Previous Year (2009) - Question 12

Which of the following is correct

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 12

Down’s syndrome is trisomy of 21st chromosome

WBJEE Biology Previous Year (2009) - Question 13

Genetically engineered bacteria are being employed for production of

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 13

Human insulin is now being produced by genetically engineered bacteria (E.coli). This insulin is called Humulin

WBJEE Biology Previous Year (2009) - Question 14

Scientific name of sunflower is

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 14

Helianthus annuus is sunflower

WBJEE Biology Previous Year (2009) - Question 15

By which of the following methods, new and better varieties of plants can be formed?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 15

Better variety of plant can be formed by hybridisation followed by selection.

WBJEE Biology Previous Year (2009) - Question 16

Which one is product of aerobic respiration?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 16

Malic acid is product of aerobic respiration

WBJEE Biology Previous Year (2009) - Question 17

CO2 acceptor in C3 cycle is

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 17

RUBP (Ribulose 1.5. biphosphate) is CO2 acceptor in C3 plant

WBJEE Biology Previous Year (2009) - Question 18

Virus was discovered by whom?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 18

Ivanowsky discovered virus

WBJEE Biology Previous Year (2009) - Question 19

Electron microscope is based on principle of

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 19

Electrton microscope is based on principle of electromagnetic theory

WBJEE Biology Previous Year (2009) - Question 20

Citric acid cycle is the alternate name of which of the following?

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 20

Citric acid cycle or Krebs’cycle or Tricarboxylic acid cycle is alternative names

WBJEE Biology Previous Year (2009) - Question 21

Vascular tissue in higher plants develop from which of the following :

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 21

Procambium forms vascular tissue in higher plants

WBJEE Biology Previous Year (2009) - Question 22

Which element is cause of etai etai disease

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 22

Etai etia is caused by Cd

WBJEE Biology Previous Year (2009) - Question 23

Chromosomes can be stained with one of the following chemicals

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 23

Acetocarmine is used to stain chromosome

WBJEE Biology Previous Year (2009) - Question 24

Which one of the following is the American Poultry breed

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 24

Rhod island Red is the American Poultry Breed

WBJEE Biology Previous Year (2009) - Question 25

Which part of the human brain is largest :

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 25

Cerebrum is the largest part of brain

WBJEE Biology Previous Year (2009) - Question 26

When the other floral parts are arranged at the base of the gynoecium, the flower is called :

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 26

Hypogynous flower/Superior ovary

WBJEE Biology Previous Year (2009) - Question 27

In a CAM plant the concentration of organic acid :

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 27

In a CAM plant the concentration of organic acid increases during night

WBJEE Biology Previous Year (2009) - Question 28

Protein coat of virus is known as :

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 28

Protein coat of virus is called capsid

WBJEE Biology Previous Year (2009) - Question 29

Net yield of aerobic respiration during Krebs’ cycle per glucose molecule is :

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 29

Net yield of 2ATP for two Krebs’ cycle (1 glucose molecule) is produced at SLP

WBJEE Biology Previous Year (2009) - Question 30

Feedback inhibition of enzymes is affected by which of the following

Detailed Solution for WBJEE Biology Previous Year (2009) - Question 30

Feedback inhibition is affected by end products

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