Welcome to the Quiz!

This quiz contains 8 questions from a mix of 1 subtopics.

Which of these is a characteristic that humans have selectively bred for?

Horses that can run faster

Cows that produce less milk

Wheat plants with smaller grains 

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Which of the following characteristics do humans selectively breed for in plants?

(Select all that apply)

Decreased yield 

Better taste

Increased yield 

Worse taste 

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2

What type of variation can be passed on to the next generation?

Environmental variation only

Both genetic and environmental variation

Genetic variation only

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What effect does selective breeding usually have on variation within a population?

It does affect variation 

It decreases variation 

It increases variation

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Illustration of a DNA helix showing the structure of genes and alleles.

What is the term used to describe all the genes and their alleles found in a population?

Phenotype 

Chromosome 

Inbreeding

Gene pool

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What is the term used to describe the breeding together of closely related individuals?

Gene pool

Chromosome 

Phenotype 

Inbreeding 

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What are the drawbacks of inbreeding?

(Select all that apply)

The population as a whole will be more at risk of disease 

Rare inherited diseases are more likely to appear

We can select for advantageous traits 

It reduces that size of the gene pool 

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3

Describe how the process of selective breeding could be used to increase milk production in a population of cows. 

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4