Evolution Chapter-Wise Test 14

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which factor is responsible for the formation of new species through random changes in gene frequency?

Natural Selection
Mutation
Genetic Drift
Gene Flow
3

Genetic drift, especially in small populations, causes random changes in gene frequency that can lead to speciation.

Which group of organisms were the first to release oxygen through photosynthesis?

Cyanobacteria
Green algae
Ferns
Angiosperms
1

Cyanobacteria were the first organisms to release oxygen through photosynthesis, transforming Earth's atmosphere.

Which hominid was the first to use tools and had a brain capacity of 650-800 cc?

Homo erectus
Homo sapiens
Australopithecus
Homo habilis
4

Homo habilis, known as the ‘handy man,’ was the first hominid to use tools, with a brain capacity ranging from 650 to 800 cc.

Which evolutionary principle suggests that individuals with favorable traits are more likely to survive and reproduce?

Genetic Drift
Natural Selection
Founder Effect
Gene Flow
2

Natural selection suggests that individuals with favorable traits are more likely to survive and reproduce, contributing to evolutionary changes.

Which evolutionary concept explains the similarity in the genetic code across all living organisms?

Convergent Evolution
Common Ancestry
Parallel Evolution
Adaptive Radiation
2

The universal genetic code in all living organisms supports the concept of common ancestry.

Which of the following is incorrect?

Industrial melanism is an example of natural selection.
Homo habilis used tools, earning the name ‘handy man.’
Mutation is the only mechanism of genetic variation.
Adaptive radiation leads to species diversification from a common ancestor.
3

Mutation is one of several mechanisms of genetic variation, including recombination and gene flow.

Which of the following statements is correct?

Hardy-Weinberg equilibrium is maintained with continuous mutations.
Industrial melanism is an example of artificial selection.
Paleontology provides evidence for evolutionary changes through fossils.
Darwin’s finches are an example of convergent evolution.
3

Paleontology studies fossils to provide evidence of evolutionary changes over time.

Which concept explains the evolutionary link between fish and amphibians?

Panspermia
Adaptive Radiation
Lamarckism
Transitional Fossils
4

Transitional fossils provide evidence of the evolutionary link between fish and amphibians.

Which of the following statements is correct?

Hardy-Weinberg equilibrium describes constant allele frequencies in the presence of evolutionary forces.
Coelacanth is an extinct species.
Homologous organs have different structures but similar functions.
Gene flow reduces genetic differences between populations.
4

Gene flow reduces genetic differences between populations by introducing new alleles.

Which scientist worked in the Malay Archipelago and reached conclusions similar to Darwin’s on evolution?

Alfred Wallace
Hugo de Vries
Jean-Baptiste Lamarck
Thomas Malthus
1

Alfred Wallace independently arrived at the theory of natural selection while working in the Malay Archipelago.

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