Variation And Evolution Flashcards

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1
Q

Classification

A

Placing organisms into similar groups

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2
Q

Taxonomy

A

The study of classification

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3
Q

Species

A

A group of organisms capable of interbreeding to produce fertile offspring

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4
Q

Mutations

A

A change in the structure of DNA

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5
Q

The two types of mutations

A

Gene mutation
Chromosome mutation

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6
Q

Chromosome mutation

A

A large change in the structure or number of one or more chromosomes

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7
Q

Mutagens

A

Agents that cause mutation

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8
Q

Causes of mutation

A

Radiation e.g UV light
Chemicals e.g cigarette smoke

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9
Q

Variation

A

Differences within a species

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10
Q

2 sources of variation

A

Sexual reproduction
Mutations

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11
Q

Types of variations

A

Inherited variations - cause by genes eg hair colour
Acquired variations - learned during life eg language

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12
Q

Evolution

A

Genetic changes in a species, in response to their environment

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