Evolution Test

Result

Evolution Test - 80

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Age of fishes is also known as

A
Permian Era

B
Silurian Era

C
Devonian Era

D
Ordovician Era

Solution

Palaeozoic era is also called as “era of ancient life”. It is divided into six periods, which are namely Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian period. Ordovician period (505-430 million years ago) is marked by appearance of first vertebrates and fungi as well as major extinction of marine species. Silurian period (430-410 million years ago) marked by origin of jawed fishes, wingless insects and terrestrial vascular plants. This makes options B and D incorrect as fishes originated in Silurian period. Devonian period (410-360 million yrs ago; 'age of fishes') is marked by origin of amphibians and diversification and dominance of fishes on earth.
Question 2
1 / -0

The beginning of plant cultivation is considered to be taken place in

A
Neolithic

B
Paleolithic

C
Mesolithic

D
None of the above

Solution

The stone age can be divided into the Paleolithic ("old stone age"), during which all humans were hunter-gatherers; the Mesolithic ("middle stone age"), the transitional phase to agricultural life; and the Neolithic ("new stone age"), when humans subsisted through agriculture. The transition to agricultural life commenced ca. 10,000 BC, when the most recent glacial period ended, giving rise to a warmer (and thus more farming-conducive) global climate. It was warmer, there was more available water, and the once-arid region became full of vegetation, forests, and reliable seasonal rain. The people who lived here had to change their lifestyles and realized they could stay here year-round. They began constructing basic wooden huts and started controlling what plants could grow. They planted seeds from wild wheat and removed the weeds, starting early agriculture.
Therefore, the correct answer is option C.
Question 3
1 / -0

One species of finch was originally colonized in Galapagos Islands. Today these islands contain many species of finches that occupy diverse niches.
This is most likely resulted from
I. Biological magnification
II. Convergent evolution
III. Adaptive radiation

A
I only

B
II only

C
III only

D
II and III only

E
I, II and III

Solution

Diversification of ancestral line into different forms which in turn occupy diverse ecological niche is referred to as adaptive radiation. For example, the ancestral seed eating stock of Darwin’s finches diversified according to different types of food (plants, seeds, insects, cactus etc.) available and developed type of beak adapted to that food. The geographical isolation led reproductive isolation and thus, the evolution of new species of finches from the parental stock.
Development of similar structure in two distant organisms as a response to adaptation to same environmental conditions is referred to as convergent evolution.
Biological magnification is an accumulation of substances over subsequent trophic levels in the food chain.
Therefore, the correct answer is option C.
Question 4
1 / -0

Match the following.
Identify the sequence of list II with respect to list I.

List I
List II
(A)
Cosmozoic theory
Aristotle
(B)
Biogenesis theory Louis Pasteur
(C)
Theory of spontaneous generation
Cuvier
(D)
Theory of catastrophism
Arrhenius

A
A- (IV), B- (II), C- (I), D- (III)

B
A- (II), B- (IV), C- (I), D- (III)

C
A- (III), B- (II), C- (IV), D- (I)

D
A- (IV), B- (I), C- (II), D- (III)

Solution

According to cosmozoic theory, life has reached this planet Earth from other heavenly bodies such as meteorites, in the form of highly resistance spores of some organisms.This idea was proposed by Richter in 1865 and supported by Arrhenius (1908).
The theory of biogenesis claims that living things could only arise from living things which is proposes by Thales.
Theory of spontaneous generation was proposed by Aristotle. This theory states that life could arise from inanimate matter.
Catastrophism was a theory developed by Georges Cuvier, it is the idea that many of Earth's crustal features (strata layers, erosion, polystrate fossils, etc) formed as a result of past cataclysmic activity.
Therefore correct combination is A- 4, B- 2, C- 1, D- 3.
Question 5
1 / -0

In a given area, insects live by making burrows in the bark of a tree. These insects are fed upon by a population of birds in the same area. The most correct explanation for the increase in the beak size of the bird population is

A
Increased fitness of the birds, leading to speciation

B
Decreased fitness of the insects, allowing the birds to catch them more easily

C
Increased fitness of large-beaked birds, leading to evolution

D
Decreased fitness of small-beaked birds, leading to speciation

E
Random mutation and genetic recombination

Solution

The insects live in the burrow in the tree bark and mutation in the beak size leading to increasing in its size conferred the survival advantage to the birds having this mutation. This is because large beak size enables them to trap the insects from inside of the burrow. Natural selection favoured this mutation owing to survival advantage and gradually the number of birds having this mutation increased i.e., the evolution of the birds having large beak size.
Thus, the correct answer is option C.
Question 6
1 / -0

Which of the following shows similarity with first man?

A
Homo neanderthalensis

B
Australopithecus

C
Homo erectus

D
Homo habilis

Solution

Homo habilis existed about 2 million years ago and was marked as the beginning of the human phase and it was considered a toolmaker, who invented many tools and made utensils from stones therefore also known as Handy Man. So, the correct answer is option D.
Question 7
1 / -0

60% of alleles of a gene in a population are recessive. The proportion of heterozygous individuals would be

A
$$0.16$$

B
$$0.24$$

C
$$0.36$$

D
$$0.48$$

E
$$0.6$$

Solution

According to the Hardy-Weinberg law, the allele and genotype frequencies in a population remain constant under absence of factors responsible for evolution. It states that the sum of all genotype frequencies can be represented as the binomial expansion of the square of the sum of p and q. This sum is equal to one.
(p + q)2 = $$p^2$$ + 2pq + $$q^2$$ = 1.
Here, "p" is the frequency of dominant allele, $$p^2$$ is frequency of homozygous dominants, q is frequency of recessive allele and $$q^2$$ is frequency of homozygous recessive individuals. The "2pq" in equation shows frequency of heterozygotes in the population. In the question, the genotype frequency of recessive allele is (q) = (60% or 0.6). Since, p + q = 1; thus the frequency of dominant allele = p = 1 - q = 1 - 0.6 = 0.40. Proportion of heterozygous individuals = 2pq = 2 x 0.6 x 0.4 = 0.48.
Therefore, the correct answer is option D.
Question 8
1 / -0

Homo erectus evolved during

A
Oligocene

B
Pliocene

C
Pleistocene

D
Miocene

Solution

The evolution of Homo erectus occurred during the Pleistocene and fossils of this species have been found in Java, China, Europe and throughout Africa. Its earliest fossil evidence dates to 1.9 million years ago and the most recent to 70,000 years ago. They had shorter arms, which were a departure from Homo habilis and Australopithecus, indicating that tree-climbing ability had finally been lost. The longer legs were better suited to running and walking long distances. Size of the brain is 1,000 cubic centimeters. The face was flat and the skull had prominent ridges over the brow
So, the correct answer is 'Pleistocene'
Question 9
1 / -0

Which of the following is the most primitive ancestor of man?

A
Homo Habilis

B
Austalopithecus

C
Rampithecus Punjabicus

D
Homo Neanderthalensis
Solution
Correct option: C
Explanation:
Ramapithecus was the most primitive hominid; known from India and East Africa in Late Miocene or Early Pliocene time (about 14 million years ago).
Ramapithecus was the earliest known hominid, some 5 or 6 times older than the oldest Pleistocene hominids.
The remains of Ramapithecus resemble closely the equivalent parts of the later Hominidae suggesting that they were the beginning of the lineage leading to humans..
Question 10
1 / -0

Which one of the following is the least fit individual in terms of evolution?

A
A 45-year-old male with a terminal disease who has fathered three children

B
A 20-year-old man who has fathered one child

C
A 35-year-old woman with four children

D
A healthy 4-year-old child

E
A 25-year-old woman with one child, who has had a tubal ligation to prevent future pregnancies

Solution

Evolutionary fitness refers to the ability of individual to interbreed and produce fertile offspring. Among the given options, a 4 years old child have minimum reproduction potential and is least fit in terms of evolution. The individuals have at least one child to maintain their gene pool. Thus, the correct answer is option D.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

I.	Biological magnification
II.	Convergent evolution
III.	Adaptive radiation

	List I	List II
(A)	Cosmozoic theory	Aristotle
(B)	Biogenesis theory	Louis Pasteur
(C)	Theory of spontaneous generation	Cuvier
(D)	Theory of catastrophism	Arrhenius

Evolution Test - 80

Result

Evolution Test - 80

Score

-

Rank

-

SHARING IS CARING

Question 1

Permian Era

Silurian Era

Devonian Era

Ordovician Era

Solution

Question 2

Neolithic

Paleolithic

Mesolithic

None of the above

Solution

Question 3

I only

II only

III only

II and III only

I, II and III

Solution

Question 4

A- (IV), B- (II), C- (I), D- (III)

A- (II), B- (IV), C- (I), D- (III)

A- (III), B- (II), C- (IV), D- (I)

A- (IV), B- (I), C- (II), D- (III)

Solution

Question 5

Increased fitness of the birds, leading to speciation

Decreased fitness of the insects, allowing the birds to catch them more easily

Increased fitness of large-beaked birds, leading to evolution

Decreased fitness of small-beaked birds, leading to speciation

Random mutation and genetic recombination

Solution

Question 6

Homo neanderthalensis

Australopithecus

Homo erectus

Homo habilis

Solution

Question 7

$$0.16$$

$$0.24$$

$$0.36$$

$$0.48$$

$$0.6$$

Solution

Question 8

Oligocene

Pliocene

Pleistocene

Miocene

Solution

Question 9

Homo Habilis

Austalopithecus

Rampithecus Punjabicus

Homo Neanderthalensis

Solution

Question 10

A 45-year-old male with a terminal disease who has fathered three children

A 20-year-old man who has fathered one child

A 35-year-old woman with four children

A healthy 4-year-old child

A 25-year-old woman with one child, who has had a tubal ligation to prevent future pregnancies

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday