Evolution Test

Result

Evolution Test - 3

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

Industrial melanism as observed in peppered moth proves that

A
the true black menanic forms arise by a recurring random mutation

B
the melanic form of the moth has no selective advantage over lighter form in industrial area

C
the lighter form moth has no selective advantage either in polluted industrial area or non-polluted area

D
melanism is a pollution generated feature

Solution

Industrial melanism is a term used to describe the evolutionary process, in which, darker individuals come to predominate over lighter individuals since the industrial revolution as a result of natural selection. In 1948, a black form of the moth was recorded in Manchester and by 1895, 93% of the peppered moth population in Manchester was black. This black 'melanic' form arose by a recurring random mutation, but its phenotypic appearance had a strong selective advantage in industrial areas.
Question 2
1 / -0

The Hardy Weinberg law of equilibrium was based on the following

A
random mating, selection, gene flow

B
random mating, genetic drift, mutation

C
non-random mating, mutation, gene flow

D
random mating, no mutation, no gene flow and no genetic drift

Solution

The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors. When mating is random in a large population with no disruptive circumstances, the law predicts that both genotype and allele frequencies will remain constant because they are in equilibrium. This law was based on random mating but no mutation, no gene flow and no genetic drift.
Question 3
1 / -0

Transfer of genes from one gene pool to another is

A
genetic drift

B
gene flow

C
speciation

D
mutation

Solution

Gene flow is the exchange of genetic material by interbreeding between the individuals within a population or between the populations of the same species.
Question 4
1 / -0

At particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium?

A
0.16

B
0.48

C
0.35

D
0.24

Solution

As per Hardy-Weinberg equation:

The, heterozygous frequency is

P² + 2pq + q² = 1

p = dominant allele frequency

q = recessive allele frequency

p² = homozygous genotype

2pq = heterozygous recessive genotype

q² = homozygous recessive genotype

in question, p = 0.6 and q = 0.4

= 2pq = 2 × 0.6 × 0.4 = 0.48
Question 5
1 / -0

Living fossil is

A
Ginkgo biloba

B
Gnetum ulva

C
Pinus roxburghii

D
Cycas revolute

Solution

Ginkgo biloba is a gymnospermic plant. It is also known as living fossil because it has a great fossil history.
Question 6
1 / -0

Choose the correct statement from the given option

A
Stem cells are specialized cells

B
There is no evidence of the existence of gills during embryogenesis of mammals

C
All plant and animal cells are totipotent

D
Ontogeny repeats phylogeny

Solution

“Ontogeny recapitulates phylogeny” is a theory proposed by Ernst Haeckel, a 19^thcentury German biologist and philosopher to mean that the development of an organism (ontogeny) expresses all the intermediate forms of its ancestors throughout evolution (phylogeny).
Question 7
1 / -0

SV 40 has five genes but the type of proteins synthesised by it is more than twice the number of genes present in it. It shows the presence of

A
Contained genes

B
Split genes

C
Overlapping genes

D
Overlapping genes

Solution

SV 40 contains overlapping genes and differential splicing to squeeze the maximum amount of genetic material in the smallest space. As such their transcription and translation yields more than twice the number of proteins.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Evolution Test - 3

Result

Evolution Test - 3

Score

-

Rank

-

SHARING IS CARING

Question 1

the true black menanic forms arise by a recurring random mutation

the melanic form of the moth has no selective advantage over lighter form in industrial area

the lighter form moth has no selective advantage either in polluted industrial area or non-polluted area

melanism is a pollution generated feature

Solution

Question 2

random mating, selection, gene flow

random mating, genetic drift, mutation

non-random mating, mutation, gene flow

random mating, no mutation, no gene flow and no genetic drift

Solution

Question 3

genetic drift

gene flow

speciation

mutation

Solution

Question 4

0.16

0.48

0.35

0.24

Solution

Question 5

Ginkgo biloba

Gnetum ulva

Pinus roxburghii

Cycas revolute

Solution

Question 6

Stem cells are specialized cells

There is no evidence of the existence of gills during embryogenesis of mammals

All plant and animal cells are totipotent

Ontogeny repeats phylogeny

Solution

Question 7

Contained genes

Split genes

Overlapping genes

Overlapping genes

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.