Mutations and Natural Selection

Mutations are a change in:

• Alleles

• DNA

• AT

• CG

Tags

NGSS.MS-LS3-1

What word describes a change in a trait that helps an organism survive in the environment?

• Chromosomes

• Genotype

• Adaptation

• Extinction

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NGSS.MS-LS4-4

Which organisms are most likely to survive?

• strongest

• fastest

• smartest

• best adapted

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NGSS.MS-LS4-4

How many chromosomes does the average human have?

• 23

• 18

• 46

• 24

Tags

NGSS.HS-LS3-1

How many chromosomes are given to an offspring by each parent?

• 23

• 18

• 24

• 46

Tags

NGSS.HS-LS3-1

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because the dark mice taste better

• 
  The hawks eat more dark mice than light mice because they can see the dark mice more easily

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-4

If an animal can't adapt fast enough, this might happen.

• hibernate

• stay the same

• live longer

• become extinct

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-4

What is natural selection?

• The process by which individuals with beneficial traits produce more offspring

• The ability of an organism to change its color

• A random process that occurs without any environmental influence

• The process by which individuals learn to adapt to their environment

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

What is another name for natural selection?

• survival of the smartest

• survival of the fastest

• survival of the biggest

• survival of the fittest

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NGSS.MS-LS4-4

NGSS.MS-LS4-2

What role do mutations play in evolution?

• They decrease genetic diversity.

• They are always harmful.

• They provide new genes that natural selection can act upon.

• They stabilize the genetic structure of populations.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

NGSS.MS-LS3-1