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Published on: 05/11/2020
12th Standard Zoology - Evolution 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.
In this type of selection no speciation takes place but the phenotype stability is maintained within the population over generation.
Stabilizing selection
Directional selection
Disruptive selection
Adaptive radiation
2.
According to big bang theory, the primitive earth had all the following Except:
Ammonia
Methane
Oxygen
Hydrogen and water vapour
3.
Morphological isolation is also known as _______________
Physiological isolation
Cytological isolation
Mechanical isolation
Seasonal isolation
4.
Lamarck theory was disproved by _______________
Weinberg
August Weismann
Haeckel
Wallace
5.
Human evolution occured in _____________ era
Paleozoic
Cenozoic
Mesozoic
Precambrian
6.
_____________ was not a part of theory of chemical evolution.
Sea served as chemical laboratory
Oxygen was not present
Physical forces such as UV, lightning contributed to changes.
Solar energy was not available
7.
Carbon dioxide in the primitive earth is said to have been formed from ___________
Methane & Oxygen
Methane & Ammonia
Carbon and Oxygen
Carbon & Methane
8.
9.
The age of fossils can be determined by
electron microscope
weighing the fossils
carbon dating
analysis of bones
10.
Who published the book “Origin of species by Natural Selection” in 1859?
Charles Darwin
Lamarck
Weismann
Hugo de Vries
1.
(c)
Disruptive selection
2.
(c)
Oxygen
3.
(c)
Mechanical isolation
4.
(b)
August Weismann
5.
(b)
Cenozoic
6.
(d)
Solar energy was not available
7.
(b)
Methane & Ammonia
8.
(d)
9.
(c)
carbon dating
10.
(a)
Charles Darwin
12th Standard Syllabus & Materials
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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
