12th Standard Syllabus & Materials
12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set C
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set B
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set A
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set C
Published on: 05/11/2020
12th Standard Botany - Principles and Processes of Biotechnology English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021
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.
Which of the following statements does not hold true for restriction enzyme?
It recognizes a palindromic nucleotide sequence
It is an endonuclease
It is isolated from viruses
It produces the same kind of sticky ends in different DNA molecules
2.
Statement 1: Bioventing procedure increases 02 flow to accelerate degradation of pollutants.
Statement 2: Bioaugmentation uses microbes to recover metal pollutants from contaminated sites.
Statement 1 is correct and Statement 2 is also correct.
Statement 1 is correct and Statement 2 is incorrect
Both the statements are incorrect.
Statement 1 is incorrect and Statement 2 is correct.
3.
Statement 1: Liposomes are the artificial lipoprotein vesicles.
Statement 2: Liposomes are highly used in gene transfer.
Statement 1 is correct and Statement 2 is also correct.
Statement 1 is correct and Statement 2 is incorrect.
Both the statements are incorrect.
Statement 1 is incorrect and Statement 2 is correct
4.
A vector should________
(i) contain suitable marker
(ii) contain ori site
(iii) have poly linkess
(iv) be small in size
i, ii and iii
ii, iii and iv
i, ii and iv
all the above
5.
Select the correct restriction enzyme which breaks the phosphodiester bond within a DNA molecule.
(i) Ba131
(ii) Hind II
(iii) BamHI
(iv) Pvul
i and iii
i, ii and iii
ii, iii and iv
i only
6.
Zymology deals with __________
Study of yeast fungus and its practical applications.
Study of fermentation and its uses.
Study of Bioreactors and their construction methodology.
Study of zymase producing microbes and its benefits.
7.
Some of the characteristics of Bt cotton are ______.
Long fibre and resistant to aphids
Medium yield, long fibre and resistant to beetle pests
high yield and production of toxic protein crystals which kill dipteran pests.
High yield and resistant to ball worms
8.
Assertion (A): Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is associated with the root nodules of all cereals and pulse crops
Reason(R): A gene incorporated in the bacterial chromosomal genome gets automatically transferred to the cross with which bacterium is associated.
Both assertion and reason are true. But reason is correct explanation of assertion.
Both assertion and reason are true. But reason is not correct explanation of assertion.
Assertion is true, but reason is false.
Assertion is false, but reason is true
Both assertion and reason are false.
9.
The process of recombinant DNA technology has the following steps
I. amplication of the gene
II. Insertion of recombinant DNA into the host cells
III. Cutting of DNA at specific location using restriction enzyme .
IV. Isolation of genetic material (DNA) Pick out the correct sequence of step for recombinant DNA technology.
II, III, IV, I
IV, II, III, I
I, II, III, IV
IV, III, I, II
10.
Plasmids are ______.
circular protein molecules
required by bacteria
tiny bacteria
confer resistance to antibiotics
1.
(c)
It is isolated from viruses
2.
(b)
Statement 1 is correct and Statement 2 is incorrect
3.
(d)
Statement 1 is incorrect and Statement 2 is correct
4.
(d)
all the above
5.
(c)
ii, iii and iv
6.
(b)
Study of fermentation and its uses.
7.
(d)
High yield and resistant to ball worms
8.
(a)
Both assertion and reason are true. But reason is correct explanation of assertion.
9.
(b)
IV, II, III, I
10.
(d)
confer resistance to antibiotics
12th Standard Syllabus & Materials
12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set B
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set A
NEW12th Standard
TN 12th Standard Physics Wave Optics Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Physics Wave Optics Creative Questions Study Material - QB365 Set C
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
