Evolution Test

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Evolution Test - 55

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Weekly Quiz Competition

Question 1
1 / -0

Origin of new species and genera is

A
Coevolution

B
Microevolution

C
Macroevolution

D
Megaevolution

Solution

Macroevolution refers as a evolutionary change above species level. It involves changes on large scale as origin of new genera. It can be due to mutation. Thus, the correct answer is 'macroevolution.'
Question 2
1 / -0

One of the following period witnessed the extinction of dinosaurs and primitive birds.

A
Cretaceous

B
Jurassic

C
Pleistocene

D
Triassic
Solution
- The earth contains different layers of sediments, of which the bottom layer is the oldest layer and the upper layer is the most recent layer. Based on the age of rocks, a time scale was prepared and it is called the geological time scale, it depicts the different stages of the evolution of life on the earth over the past millions of years.
- It consists of three Eons, that consists of Eras which are divided into Periods that may be further subdivided into Epochs. These Eras, Periods, Epochs depict the time of origin and the dominance of the certain group of animals during certain Eras or Periods. It provides the most direct evidence for the concept of evolution.
- In order from oldest to youngest, the three Eons are as follows
Archean Eon: ancient or archaic (oldest rocks on earth)
Proterozoic Eon: beginning life (2.5 billion to 542 million years ago)
Phanerozoic Eon: visible life (542 million years ago to present)
The Cretaceous period witnessed the extinction of dinosaurs and primitive birds. First modern birds appeared Primitive placental mammals as insectivorous shrews originated.
So, the correct option is 'Cretaceous'.
Question 3
1 / -0

Java Man is

A
Pithecanthropus erectus

B
Pithecanthropus pekinensis

C
Komo rhodesiensis

D
Homo heidelbergensis
Solution
- Java man is Homo erectus and Pithecanthropus erectus.
- The fossil was obtained from the central Java.
- They lived in caves.
- They were the first man to use fire for hunting, protection, and cooking.
So, the correct option is 'Pithecanthropus erectus'.
Question 4
1 / -0

Which one is a match?
(i) Cenozoic: 2 - 65 mya: Origin of vertebrates
(ii) Palaeozoic: 500 - 165 mya: Rise of egg-laying mammals
(iii) Mesozoic: 135 - 225 mya: Reptiles dominant
(iv) Proterozoic: 350 - 600 mya: Trilobites dominant.

A
i

B
ii

C
iii

D
iv
Solution
- The earth contains different layers of sediments, of which the bottom layer is the oldest layer and the upper layer is the most recent layer. Based on the age of rocks, a time scale was prepared and it is called the geological time scale, it depicts the different stages of the evolution of life on the earth over the past millions of years.
- It consists of three Eons, that consists of Eras which are divided into Periods that may be further subdivided into Epochs. These Eras, Periods, Epochs depict the time of origin and the dominance of the certain group of animals during certain Eras or Periods. It provides the most direct evidence for the concept of evolution.
- In order from oldest to youngest, the three Eons are as follows
Archean Eon: ancient or archaic (oldest rocks on earth)
Proterozoic Eon: beginning life (2.5 billion to 542 million years ago)
Phanerozoic Eon: visible life (542 million years ago to present).
There are eras in the Phanerozoic eon. In order from oldest to youngest, they are as follows:
1)Precambrian Era: earliest part of earth's history.
2)Paleozoic Era: ancient life (such as trilobites)
3) Mesozoic Era: middle life (such as dinosaurs)
4)Cenozoic Era: recent life (such as mammals and flowering plants).
So, the correct option is 'i'.
Question 5
1 / -0

Select the correct pair

A
Adaptive radiation - Darwin's Finches

B
Connecting Link - Sewall Wright effect

C
Genetic. Drift - Peppered Moth

D
Industrial melanism - Archaeopteryx

Solution

Adaptive Radiation Darwin's finches
Connecting Link Archaeopteryx
Genetic Drift Sewall Wright effect
Industrial melanism Peppered Moth
So, the correct answer is 'Adaptive radiation-Darwin's Finches'
Question 6
1 / -0

Gene pool of a population tends to remain stable if the population is large, without migration and with

A
Random mating

B
Moderate environmental changes

C
Natural selection

D
Reduction in predators

Solution

In population genetics, gene flow is transferred of genetic variation from one population to another. If the rate of gene flow is high enough then two populations are considered to have equivalent genetic diversity and therefore effectively be a single population.
So, the correct option is 'Random mating'.
Question 7
1 / -0

What of the following is a correct match?

A
Lamarck's theory - struggle for existence

B
Biogenetic law - Recapitulation theory

C
Lamarck's theory - Theory of continuity of germplasm

D
Darwin's theory - Use and disuse of organs

Solution

(A)Lamarck's theory- Concept of Inheritance and Acquired Characters.
(B)Biogenetic law- Recapitulation theory
(C)Lamarck's theory- Concept of Inheritance and Acquired Characters.
(D)Darwin's Theory- Survival of fittest.
So, the correct option is 'Biogenetic law- Recapitulation theory'.
Question 8
1 / -0

Homo erectus is the zoological name of

A
Java ape man

B
Peking man

C
Neanderthal man

D
Both A and B

Solution

Java Ape Man was one of the first specimens of homo erectus to be discovered. It was originally given the scientific name Pithecanthropus erectus by Eugene Dubois. Later, Java ape-man was redesignated as Homo erectus.
So, the correct option is, 'Java ape-man'.
Question 9
1 / -0

Frequency of a gene in population will increase if the gene is __________.

A
Lethal

B
Dominant

C
Recessive

D
Favourably selected
Question 10
1 / -0

Gene frequency in a population remains stable unless and until there is :

A
Random drift

B
Random mating

C
Selection

D
Mutation

Solution

In a population, the gene frequency remains steady until and unless it is influenced by the elements like gene recombination, mutation, gene flow, genetic drift, and chromosomal aberration.
Hence, the correct answer is option d, that is, mutation.

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Adaptive Radiation	Darwin's finches
Connecting Link	Archaeopteryx
Genetic Drift	Sewall Wright effect
Industrial melanism	Peppered Moth

Evolution Test - 55

Result

Evolution Test - 55

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Rank

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SHARING IS CARING

Question 1

Coevolution

Microevolution

Macroevolution

Megaevolution

Solution

Question 2

Cretaceous

Jurassic

Pleistocene

Triassic

Solution

Question 3

Pithecanthropus erectus

Pithecanthropus pekinensis

Komo rhodesiensis

Homo heidelbergensis

Solution

Question 4

i

ii

iii

iv

Solution

Question 5

Adaptive radiation - Darwin's Finches

Connecting Link - Sewall Wright effect

Genetic. Drift - Peppered Moth

Industrial melanism - Archaeopteryx

Solution

Question 6

Random mating

Moderate environmental changes

Natural selection

Reduction in predators

Solution

Question 7

Lamarck's theory - struggle for existence

Biogenetic law - Recapitulation theory

Lamarck's theory - Theory of continuity of germplasm

Darwin's theory - Use and disuse of organs

Solution

Question 8

Java ape man

Peking man

Neanderthal man

Both A and B

Solution

Question 9

Lethal

Dominant

Recessive

Favourably selected

Question 10

Random drift

Random mating

Selection

Mutation

Solution

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