Welcome to the Quiz!

This quiz contains 14 questions from a mix of 1 subtopics.

What does the term 'phenotype' mean?

One of the different forms of a gene 

The observable characteristics of an organism 

The combination of alleles that an organism has 

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Illustration showing differences in characteristics of individuals within a population.

Differences in the characteristics of individuals within a population is called

variation

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Which two factors contribute to the variation between organisms? 

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A change in the DNA code is called a .

mutation

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What factor(s) are involved in determining body mass?

Both genetic factors and environmental factors

Genetic factors only

Environmental factors only

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Which of the following are determined entirely by genetic factors?

(Select all that apply)

Biological sex (male or female)

Natural eye colour

Height

Skin colour 

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A change in the genetical material of an organism is called a .

mutation

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Which statement about mutations is true?

They are always advantageous 

They never have any affect on the organism

They generally have no effect, but are occasionally harmful, and very occasionally advantageous 

They are always harmful 

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What does the phrase 'survival of the fittest' mean?

Certain individuals are selected by humans to reproduce 

Over long periods of time, one population of organisms may become a new species 

The individuals with the most favourable characteristics are most likely to survive

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___________ is the process by which the inherited characteristics of a population change over time due to natural selection. In some cases this may result in the formation of a new species.

Evolution

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Who is credited with developing and proposing the theory of evolution?

Charles Babbage 

Jean-Baptiste Lamarck

Charles Darwin

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Which of the following provide evidence for the theory of evolution?

(Select all that apply)

The fact that variation is due to genes and the environment 

The spread of antibiotic resistance

The fact that the human body is so complex

Fossil records

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Describe a series of events that might result in zebras evolving to run more quickly.

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Speciation is the evolutionary process by which populations evolve to become distinct .

species

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