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CB4 Natural Selection and Genetic Modification Flashcards | StudBud
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CB4 Natural Selection and Genetic Modification
CB4 Natural Selection and Genetic Modification
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Edexcel 9-1 GCSE Science CB4 Natural Selection and Genetic Modification
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
Which of these is an ADVANTAGE of genetic engineering?
Costs more money to produce
Can all die from same disease
Crops are resistant to some insects
May be bad for health
2
Which of these is the LARGEST classification group?
Genus
Phylum
Kingdom
Species
3
James Burnett hypothesised that humans had evolved from what animal?
Apes
Amphibians
Reptiles
Birds
4
How old are the fossilised remains of 'Lucy' Australopithecus afarensis?
4.4-million-year-old
1.4-million-year-old
3.2-million-year-old
4.4-trillion-year-old
5
What is evolution?
Gradual change in characteristics of organism over long time
4.4million year old fossilised specimen Ardipithecus ramidus
An organism from which more recent organisms aredescended
System of naming organisms using two Latin words
6
What is an allele?
The amount of useful product that you can get from something
Different forms of the same gene
Organism that has been produced using genetic engineering
All the DNA in an organism
7
Who found the remains of Homo habilis 'Handy man' in the 1960's?
Carl Linnaeus
James Burnett
Charles Darwin
Mary and Louis Leakey
8
Changing the DNA of one organism by inserting genes from another is known as?
Selective breeding
Resistance
Competition
Genetic engineering
9
What is a common ancestor?
Unaffected or less affected by something
An organism from which more recent organisms are descended
System of naming organisms using two Latin words
Medicine that helps people recover from bacterial infection
10
How old are the fossilised remains of 'Ardi' Ardipithecus ramidus?
4.4-million-year-old
3.2-million-year-old
4.4-trillion-year-old
1.4-million-year-old
11
What does GMO stand for?
Genetic mobile organism
Genetically monitored organism
Genetically modified organism
Genetic monitored organism
12
What have these salmon been genetically engineered for?
Grow faster
Better taste
Larger fins
Better swimming
13
Which of these is NOT one of the five kingdoms?
Plants
Protists
Species
Animals
14
Variation in characteristics of individuals as a result of DNA (genes) is called?
Natural selection
Evolution
Competition
Genetic variation
15
What characteristic have humans artificially selected for here?
Meat
Flowers
Wool
Size
16
Which kingdom does this uni cellular organism, with a cell wall not made of chitin belong to?
Prokaryotes
Protists
Fungi
Animals
17
Which kingdom does this uni cellular organism with a flexible cell wall belong to?
Prokaryotes
Animals
Fungi
Plants
18
Which of these is NOT a disadvantage of selective breeding?
Organisms are very similar so disease affects them all
Alleles may become rare or disappear
Organisms have desired characteristics
Animal welfare
19
Which kingdom does this multi cellular organism belong to?
Animals
Fungi
Plants
Prokaryotes
20
What characteristic have humans selectively bred for here?
Fur colour
Meat
Size
Ear length
21
Who proposed the theory of natural selection?
Mary and Louis Leakey
Charles Darwin
James Burnett
Carl Linnaeus
