biology 6.1-7.4

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where are genes found?
in the chromosones
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what do genes control?
development of characteristics(eye colour)
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explain which type of reproduction produces geneticly indentical offspring(babies)?
asexual reproduction because there is only set of genes
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explain which type of reproduction leads to variation of the off spring(babies)?
sexual
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what are the two factors that control our chracteristics?
genes (eye colour) and enviomental(peircings)
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name a quick,cheap way of clonning plants?
taking cuttings
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why is it more differcult to successfully clone animals than plant?
animal embryos must be split
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name two cells needed for adult clonning (animals)?
skin and egg
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what is used to cut genes out?
enzymes
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why do farmers grow gm crops?
they will get a higher yield =more money
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how long ago did life begin on earth?
3 billion years ago
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what name was given to darwins theory?
natural selection
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which birds did darwin observe?
finches
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why do organisms show a wide range of variation?
difference in genes
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why are mutated genes sometimes an advantage?
envonment changes the gene may control the organism that is better adaptied conditions
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what are the main kingdoms of living organisms?
animals, plans and microorganisms
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why is it useful to draw evolutionary trees?
they show relationships between organisms
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Card 2

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what do genes control?

Back

development of characteristics(eye colour)

Card 3

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explain which type of reproduction produces geneticly indentical offspring(babies)?

Back

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Card 4

Front

explain which type of reproduction leads to variation of the off spring(babies)?

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Card 5

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what are the two factors that control our chracteristics?

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