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12th Biology Weekly Test - 1 ( Zoology - Evolution )

St. Britto Hr. Sec. School - Madurai

12th Biology Weekly Test - 1 ( Zoology - Evolution )-Aug 2020

Time : 1.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Modern man belongs to which period?

Quaternary
Cretaceous
Silurian
Cambrian

Homo sapiens or modern human arose in _____________

Australia
Africa
Germany
Eurasia

Native offered positive selection pressure to the __________ coloured moths in the industrial mechanism.

White
black
red
red and black

This does not produce any genetic variations but once such variations occur, it favours some genetic changes while rejecting others.

Genetic recombination
Chromosomal mutation
Reproductive isolation
Natural selection

Australian ape Man refers to

Ramapithecus
Australopithecus
Dryopithecus
Sivapithecus

Presence of tail in human baby is an example for ________________

Vestigial organ
Atavism
Homologous organ
Analogous organ

Origin of first man like apes occured in ______________ epoch

Oligocene
Miocene
Pliocene
Paleocene

According to big bang theory, the primitive earth had all the following. Except

Ammonia
Methane
Oxygen
Hydrogen and water vapour

According to Neo Darwinism change in the frequency of genes in population arise due to all. Except.

Natural selection
Mutation
Struggle for existence
Variation

Founder's effect is related to

Genetic drift
Gene mutation
Extinction
Artificial selection

Part - B

Generic 2 - Answer All Question

Name the five basic factors involved is the process of organic evolution according to modern synthetic theory.

Name the types of natural selection.

What is paleontology?

Explain how mutations, natural selection and genetic drift affect Hardy Weinberg equilibrium.

What are atavistic organs?
What are molecular clocks?

Part - C

Generic 3 - Answer All Question

Taking the example of Peppered moth, explain the action of natural selection. What do you call the above phenomenon?

What is hybrid sterility?

What is divergent evolution?

What are isolating barriers?
What are vestigial organs?

Give the salient features of Mutation Theory.

Part - D

Generic 5 - Answer All Question

According to Darwin, the organic evolution is due to [AIPMT-2013]
a) Intraspecific competition
b) Interspecific competition
c) Competition within closely related species.
d) Reduced feeding efficiency in one species due to the presence of interfering species.
How does Neanderthal man differ from the modern man in appearance?

Differentiate between the eating habit and brain size of Australopithecus and Ramapithecus.

Mention any three similarities found common in Neanderthal man and
Homo sapiens.

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