12th Standard Syllabus & Materials
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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
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Published on: 05/11/2020
12th Standard Biology English Medium Free Online Test Book Back 1 Mark Questions with Answer Key - Part Two
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.
Recombinant Factor VIII is produced in the ______ cells of the Chinese Hamster
Liver cells
blood cells
ovarian cells
brain cells.
2.
The purpose of biological treatment of waste water is to _______
Reduce BOD
Increase BOD
Reduce sedimentation
Increase sedimentation
3.
The age of fossils can be determined by
electron microscope
weighing the fossils
carbon dating
analysis of bones
4.
A contraceptive pill prevents ovulation by ______.
blocking fallopian tube
inhibiting release of FSH and LH
stimulating release of FSH and LH
causing immediate degeneration of released ovum.
5.
Which of the following statements is not true about DNA replication in eukaryotes?
Replication begins at a single origin of replication.
Replication is bidirectional from the origins.
Replication occurs at about 1 million base pairs per minute
There are numerous different bacterial chromosomes, with replication occuring in each at the same time.
6.
7.
ZW-ZZ system of sex determination occurs in _____.
Fishes
Reptiles
Birds
All of these
8.
Spread of cancerous cells to distant sites is termed as
Metastasis
Oncogenes
Proto-oncogenes
Malignant neoplasm
9.
Which of the following phenotypes is not possible in the progeny of the parental genotypic combination IAIO x IAIB?
AB
O
A
B
10.
Pollen tube was discovered by ______.
J.G. Kolreuter
G.B. Amici
E. Strasburger
E. Hanning
1.
(c)
ovarian cells
2.
(a)
Reduce BOD
3.
(c)
carbon dating
4.
(b)
inhibiting release of FSH and LH
5.
(d)
There are numerous different bacterial chromosomes, with replication occuring in each at the same time.
6.
(b)
7.
(d)
All of these
8.
(a)
Metastasis
9.
(b)
O
10.
(b)
G.B. Amici
12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications களப்பெயர் முறைமை (DNS) Sample Question Papers Study Material - QB365 Set A
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NEW12th Standard
TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A
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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
