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

St. Britto Hr. Sec. School - Madurai

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

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

______________ is not a vestigial organ.

Ear muscles
Wings of bat
Wisdom teeth
Coccyx

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

Ammonia
Methane
Oxygen
Hydrogen and water vapour

This can be explained clearly through industrial mechanism.

Mutation
Natural selection
Struggle for existence
Prodigality of production

_____________ is called age of Invertebrates

Cambrian
Devonian
Pennsylvanian
Mississippian

________________ Was the first human like being

Homo habilis
Homo erectus
Homo sapiens
Homo erectus

Due to change in the diet containing less cellulose,___________ inhuman become functionless and is reduced to a Vermiform appendix.

Small intensive
large intensive
Rectum
caecum

The period which witnessed decline of mammals and beginning of human social life

Triassiac
Quaternary
Tertiary
Devonian

The solar system is estimated to be _______________years old.

4.5 billion years
4 billion years
4.5 trillion years
6.4 billion years

Heritable changes in or more characteristics of a population of _____________ from one generation to other is called evolution.

Individuals
species
genus
organisms

Which of the following was the contribution of Hugo de Vries?

Theory of mutation
Theory of natural Selection
Theory of inheritance of acquired characters
Germplasm theory

Molecule which is used to study the evolution of respiratory pathway is.

DNA
RNA
r RNA
cytochrome C

All the following are examples of ontogeny recapitulates phylogeny. Except

Tubular heart
Appearance of pharyngeal gill slits
Yolk sac
Appearance of tail in human body

Theory of chemical evolution was proposed by ___________________

Stanley
Urey
Lamarck

Lamarck theory was disproved by _______________

Weinberg
August Weismann
Haeckel
Wallace

Emergence of modern birds occurred in _____________ period.

Devonian
Silurian
Jurassic
Cretaceous

Part - B

Generic 2 - Answer All Question

Differentiate between divergent evolution and convergent evolution with one example for each.
Explain how mutations, natural selection and genetic drift affect Hardy Weinberg equilibrium.

How did Darwin explain fitness of organisms?

What are actual remains?

What are atavistic organs?

Name the periods of Mesozoic era.

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

What are molecular clocks?

State the Biogenetic law.

Explain the three major categories in which fossilization occur?

What are called connecting links?Given examples.

What is founder's effect?

List out the major gases seems to be found in the primitive earth.

How does Hardy-Weinberg’s expression (p²+2pq+q²=1) explain that genetic equilibrium is maintained in a population? List any four factors that can disturb the genetic equilibrium.

What is the view ofNeo Lamarckism?

What are coprolites?

Part - C

Generic 3 - Answer All Question

What are connecting links?

What is convergent evolution?
How does Mutation theory of De Vries differ from Lamarck and Darwin’s view in the origin of new species.

What is adaptive radiation?

What is K-T extinction ?

Write a few lines about Homo habilis.

What are isolating barriers?

What are Coacervates?

What is hybrid sterility?

Who disproved Lamarck’s Theory of acquired characters? How?

Define evolution.

Part - D

Generic 5 - Answer All Question

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

A population will not exist in Hardly- Weiberg equilibrium if [AIPMT-2015]
a) Individuals mate selectively
b) There are no mutations
c) There is no migration
d) The population is large
How does Neanderthal man differ from the modern man in appearance?

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.

Rearrange the descent in human evolution
Austrolopithecus → Homo erectus → Homo sapiens → Ramapithecus → Homo habilis.

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

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