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TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

12th Standard Biology English Medium Free Online Test Creative One Mark Questions with Answer Key - Part Two

Published on: 05/11/2020

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 Test

QB365 Student Learing Managemnet System

Std: 12th Standard - Biology

chapter: - Model Question paper

Visit QB365-SLMS - https://www.qb365.in/slms/ Complete Questions and Answers

Questions:

Multiple Choice Question

10 x 1 = 10

UN conference on Sustainable development in 2012 was held at_______

(a)

Ruanda

(b)

Rio de Janeiro

(c)

Geneva

(d)

Stockholm

Select the proper sequence indicating the increasing order of biodiversity.

(a)

Polar, Temperate and Polar

(b)

Tropics, Temperate and Polar

(c)

Temperate, Tropic and Polar

(d)

Polar, Tropic and Temperate

Infection of Ascariasis occur due to ___________________

(a)

Sand fly

(b)

contaminated food

(c)

mosquito bite

(d)

stagnant water

Observe the diagram and name A and B.

(a)

A - Plasmid B - Vector

(b)

A - Nucleoid - B - Plasmid

(c)

A - Bacterial chromosome B - Vector

(d)

A - Nucleoid - B - x phage DNA

Assertion (A): Codominance is an example of intragenic interaction
Reason (R): Interaction takes place between the alleles of the same gene

(a)

A and R are correct R explains A

(b)

A and R are incorrect

(c)

A is correct R is incorrect

(d)

A is incorrect R is correct

Examine the figures and name the respective type of ovule.

(a)

A	B	C	D
Campylotropous	Amphitropous	Circinotropous	Anatropous

(b)

A	B	C	D
Anatropous	Hemianatropous	Amphitropous	Campylotropous

(c)

A	B	C	D
Campylotropous	Circinotropous	Hemianatropous	Anatropous

(d)

A	B	C	D
Hemianatropous	Campylotropous	Amphitropous	Circinotropous

The most common type of ovule noticed in dicots and monocots is

(a)

Orthotropous

(b)

Anatropous

(c)

Campylotropous

(d)

Amphitropous

Study the four statements (A to D) given below and select the two correct ones out of them.
A) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers.
B) Predator starfish Pisaster helps in maintaining species diversity of some invertebrates.
C) Predators ultimately lead to the extinction of prey species.
D) Production of chemicals such as nicotine, strychnine by the plants is disordered.
The two correct statements are

(a)

(B) and (C)

(b)

(c)

(A) and (D)

(d)

(A) and (B)

All the following are recombinant vaccines. Except

(a)

Traditional vaccines

(b)

Submit recombinant vaccines