12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

Published on: 28/06/2019
Important multiple choice questions chapter one
Download Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Conjugation is a type of ______
Asexual reproduction
Autogamy
External fertilization
Sexual reproduction
2.
If the entire organism behaves as a gamete the Phenomenon is called _____
Autogamy
Syngamy
Morphallaxis
Hologamy
3.
Autogamy is seen in ______
Paramecium
Plasmodium
Hydra
Amoeba
4.
Regeneration is not seen in ______
Starfish
Lizard
Hydra
Sea Anemone
5.
Gemmules are ______
Exogenous growth
Daughter nuclei
Internal buds
Regenerated parts
6.
Budding is seen in ______
Noctiluca
Amoeba
Nostoc
Planaria
7.
______ is seen in Aurelia.
Binary fission
Regeneration
Sporulation
Strobilation
8.
Giant Amoeba refers to ______
Opalina
Pelomyxa
Ceratium
Trichonympha
9.
Plasmotomy is observed in ________
Giant Amoeba
Hydra
Plasmodium
Ceratium
10.
During favourable conditions ______ shows multiple fission.
Plasmodium
Amoeba
Planaria
Euglena
11.
Multiple fission is seen in _______
Vorticella and ceratium
Plasmodium and paramecium
Amoeba and cyanobacteria
Vorticella and plasmodium
12.
In, dinoflagellates the types of asexual reproduction seen is _____
Simple Binary fission
Multiple fission
Oblique binary fission
Longitudinal binary fission
13.
Transverse Binary fission is seen is ______
Vorticella
Paramecium
Plasmodium
Euglena
14.
15.
16.
Animals giving birth to young ones:
Oviparous
Oviviviparous
Viviparous
Both a and b
17.
In which type of parthenogenesis are only males produced?
Arrhenotoky
Thelytoky
Amphitoky
Both a and b
18.
Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: Viviparous animals give better protection to their off springs.
Reason: They lay their eggs in the safe places of the environment.
Codes:
A. If both A and R are true and R is correct explanation for A
B. If both A and R are true but R is not the correct explanation for A
C. If A is true but R is false
D. If both A and R are false.
If both A and R are true and R is correct explanation for A
If both A and R are true but R is not the correct explanation for A
If A is true but R is false
If both A and R are false
19.
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion (A): Offsprings produced by asexual reproduction are genetically identical to the parent.
Reason(R): Asexual reproduction involves only mitosis and no meiosis.
Codes:
A. If both A and R are true and R is correct explanation for A
B. If both A and R are true but R is not the correct explanation for A
C. If A is true but R is false
D. If both A and R are false.
both A and R are true and R is correct explanation for A
If both A and R are true but R is not the correct explanation for A
If A is true but R is false
If both A and R are false.
20.
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion (A) : In bee society, all the members are diploid except drones.
Reason (R) : Drones are produced by parthenogenesis
Codes:
A. If both A and R are true and R is correct explanation for A
B. If both A and R are true but R is not the correct explanation for A
C. If A is true but R is false
D. If both A and R are false.
If both A and R are true and R is correct explanation for A
If both A and R are true but R is not the correct explanation for A
If A is true but R is false
If both A and R are false
1.
(d)
Sexual reproduction
2.
(d)
Hologamy
3.
(a)
Paramecium
4.
(d)
Sea Anemone
5.
(c)
Internal buds
6.
(a)
Noctiluca
7.
(d)
Strobilation
8.
(b)
Pelomyxa
9.
(a)
Giant Amoeba
10.
(b)
Amoeba
11.
(d)
Vorticella and plasmodium
12.
(c)
Oblique binary fission
13.
(b)
Paramecium
14.
(c)
15.
(c)
16.
(c)
Viviparous
17.
(a)
Arrhenotoky
18.
D. If both A and R are false.
19.
A. If both A and R are true and R is correct explanation for A
20.
A. If both A and R are true and R is correct explanation for A
12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications களப்பெயர் முறைமை (DNS) Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு எடுத்துக்காட்டுகள் மற்றும் நெறிமுறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications PHP-உடன் MySQL-ஐ இணைத்தல் Sample Question Papers Study Material - QB365 Set A
Tamilnadu Stateboard 12th Standard Subjects

Maths

Chemistry

Physics

Biology

Computer Science

Business Maths and Statistics

Economics

Commerce

Accountancy

History

Computer Applications

Biology

Computer Technology

Computer Applications

Computer Science

Business Maths and Statistics

Commerce

Economics

Maths

Chemistry

Physics

Computer Technology

History

Accountancy

Tamil

English

French
Tamilnadu Stateboard Standards