Variation and Inheritance

What is a key (genetics)?

• Something to open a lock

• Something that tells us which object something is

• A method of identifying a unknown organism

• The key to life

What causes variation?

• Your environment

• Your genes and your environment

• Your genes

• Your names

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What is variation?

• Racial diversity

• The variation of females and males

• Variation of personalities

• The differences between the individuals in a species

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Where are genes found?

• In the mitochondria

• In our bone marrow

• Chromosomes, in the nucleus of a cell

• In our brains

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Where do offspring get their genes?

• Half from their mom, half from their dad

• From their mom

• From their dad

• From their brains

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What is selective breeding?

• None of the below

• When you breed two animals together because of their desirable traits to create an offspring with many desirable traits, u do this for many generations

• When you breed together two different animals to create a hybrid animal and then sell it for lots of money.

• All of the above

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What is natural selection?

• There is no such thing as natural selection

• Natural selection is when the variation of an animal helps it survive longer and reproduce. When it reproduces, it creates another animal that can survive very long. The animals who do not have these variations do not survive.

• Natural selection is when humans breed animals to create more animals with desirable traits. For example, if someone wants a chicken that makes very large eggs, they could breed two chickens that do that.

• Natural selection is when the animal species that do not survive for long die off completely extinct.

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True or false: Individuals that have variations that best adapt them to their environments are most likely to survive and reproduce

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What causes a species bacteria to become resistant to antibiotics?

• Variation

• Natural selection

• Genetics

• Adaptation

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Why did the pepper moths in England turn brown from pale in 1900?

• Because the darker ones were more attractive to moths, so they reproduced more

• Because the white ones couldn't camouflage on people's clothes

• Because of the pollution during the industrial revolution. The pollution cause the pale lichens on trees to die of and turned the bark brown. The pale moths could not hid from predators on the dark bark.

• There is no reason for that to happen.

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