Genetics and Evolution Flashcards

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1
Q

Having a scar from an injury

A

Environmental variation

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2
Q

Being the tallest in the class

A

Environmental and genetic

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3
Q

Variation can occur due to what 3 factors

A

Genetic Environmental and mutations

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4
Q

Being able to roll your tongue

A

Inherited variation/genetic

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5
Q

What are differences within a species called

A

variation

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6
Q

What type of variation is weight

A

Environmental and inherited

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7
Q

Which scientist did not receive a Nobel prize for their work towards DNA discovery

A

Rosalind Franklin

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8
Q

What is the structure of DNA

A

Double helix

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9
Q

Who is the only person still alive that received a Nobel prize for the discovery of the structure of DNA

A

James Watson

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10
Q

What is the shape of DNA

A

Double helix

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11
Q

Where are chromosomes found in humans

A

In the nucleus of a cell

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12
Q

DNA is in structures. The structures make up who you are and each person has 23 pairs. What are they called?

A

Chromosomes

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13
Q

What does extinction mean

A

There are no more of a species left anywhere in the world

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14
Q

Is keeping animals in captivity a cause of extinction

A

NO

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15
Q

Has climate change forced species to become extinct

A

Yes

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16
Q

Can a natural disaster cause extinction

A

Yes

17
Q

According to Darwin’s theory of evolution, how do new species evolve?

A

By natural selection

18
Q

Why can bacteria evolve quicker than other species

A

They produce at a faster rate

19
Q

What is natural selection

A

A process where certain organisms are more likely to survive and reproduce then other members of the same species because they possess certain genetic variations

20
Q

What change would describe Lamarck’s acquired characteristics theory

A

Rabbits grew longer ears because they had to use them more and so they stretched with use. These rabbits passed their long ears to their offspring

21
Q

A feature which is well used will grow stronger and be passed on to the offspring.

Is this statement one of the principles of natural selection

A

NO

22
Q

What was the name of the book published by Charles Darwin in 1859

A

On the origin of species

23
Q

What are the two main sources of evidence for evolution?

A

Fossils and antibiotic resistant bacteria