Identify the incorrectly matched pair:
1. Cretaceous period : dinosaurs became extinct
2. Carboniferous period : origin of reptiles
3. Silurian period : origin of vascular plants
4. Cambrian period : first vertebrates (jawless fishes)

Subtopic:   A BRIEF ACCOUNT OF EVOLUTION |

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


de Vries based his “Mutation Theory” on his observation on :
1. Pisumsativum
2. Drosophila melanogaster
3. Oenotheralamackiana
4. Coenorhabditiselegans

Subtopic:  Hugo De Vries Theory of Evolution |
 78%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Which of the following is a useful tool to measure microevolution?
1. Genetic drift
2. Hardy-Weinberg equation
3. Mendelian ratios
4. Age/sex ratio

Subtopic:  Hardy Weinberg Law |
 67%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

advertisementadvertisement

The connecting link between the fishes and amphibians are the:
1. Seymouria
2. Peripatus
3. Cartilaginous fishes
4. Coelocanths [lobe finned fishes]

Subtopic:  Population Genetics | Concept of Isolation |
 82%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


The essay “On the tendencies of Varieties to Depart Indefinitely from the Original Type” was authored by :
1. A.R.Wallace
2. Charles Darwin
3. Charles Lyell
4. Joseph Dalton Hooker

Subtopic:  Theory of Evolution & Lamarckism |
 61%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


The “Replica Plating Experiment” proved that :
1. most mutations are harmful or neutral
2. mutations are recurring in nature
3. all mutations are pre-adaptive in nature
4. mutations occur in a non-directional manner

Subtopic:  Concept of Organic Evolution: Evidence |
 57%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

advertisementadvertisement

The type of natural selection that operates to eliminate intermediate phenotypes in a population is known as:

1.Directional selection2.Disruptive selection
3.Stabilizing selection4.Reverse selection

Subtopic:  Natural Selection | Hardy Weinberg Law |
 70%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


According to the modern view of Darwinism, the unit of natural selection is the :
1. population
2. individual
3. species
4. community

Subtopic:  Modern Theory of Evolution |

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

Seaweeds existed probably around:
1. 500 mya
2. 350 mya
3. 320 mya
4. 300 mya

Subtopic:   A BRIEF ACCOUNT OF EVOLUTION |
 66%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

According to the Darwinian concept of evolution, a giraffe has a long neck because:

1. it was always like that since the beginning
2. during evolution the number of cervical vertebrae got increased
3. its ancestors stretched their necks to get food
4. ancestral giraffes with longer necks got more food and left more surviving offspring

Subtopic:  Theory of Evolution & Lamarckism | Darwin's Theory | Additional Theories of Darwin |
 71%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.