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Genetics and Evolution KS3 Flashcards | StudBud
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Genetics and Evolution KS3
Genetics and Evolution KS3
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A quiz for #year9 #genetics and #evolution
Flashcards
19 cards
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Practice quiz
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Questions
19
Answers
1
Which is least
likely
to cause the endangerment of a species?
human activities.
changes in physical environmental factors.
decrease in predators
competition from other organisms
2
This birds prey is buried in the sand. Different beak sizes in the population are caused by:
how much the birds use their beaks.
how much the the birds stretch their beaks.
genes.
environmental factors
3
A gene is:
A short section of a chromosome.
a molecule found in the nucleus of cells.
The first part of an organism's scientific name.
a large, blue, ghost-like entity that lives in a lamp
4
Inherited characteristics in humans are caused by:
genetic information
blood
the country in which they grow up.
children learning things from their parents and school
5
A human liver cell has 46 chromosomes. So a human egg cell has ........ chromosomes
23
46
0
92
6
Genetic information can be found in a sperm cell in the:
tip of the head.
nucleus.
cytoplasm.
tail.
7
Which of these is
least
likely to be used for conservation?
setting up a nature reserve
creating a reservoir
banning the sale of items made from certain animals
building a zoo
8
The structure of DNA was worked out by:
Bonnie and Clyde
Holmes and Watson
Watson and Crick
Adenine and Thymine.
9
Variation is:
similarities in characteristics.
A disease
the scientific name for fertilisation.
differences in characteristics.
10
Which is the best example of an inherited variation?
a scar
eye colour
a broken leg
a tatoo
11
When there is plenty of food, what will happen to the number of birds with shorter beaks?
It will go up.
It will go down.
Beak size will grow.
It will not change.
12
The theory of evolution that most scientists believe today was put forward by:
Wallace and Darwin.
Hall and Oates
Orville and Wilbur Wright
Lamarck and Drinker Cope
13
Which is the best example of an environmental variation?
blood group
having ear lobes
a suntan
chin shape
14
Each chromosome contains one molecule of which substance?
DNA
deoxyribodipyrimidine
integrin
protein
15
What sort of variation does this chart show?
discontinous
continuous
dominant
disrespectful
16
Which feature of this animal suggests that it is prey for larger animals?
small ears
whiskers
long nose
spines on its body
17
Evolution is:
a gradual change in an organisms characteristics over time.
something that caused changes to happen in animals.
what happens after an organism becomes endangered.
when organisms decide to change their features.
18
Which of these would you expect to find in a gene bank?
single genes
sand
money for conservation projects
gametes
19
Environmental variation is caused:
When organisms breed.
By varieties.
By problems in the brains of some animals.
By environmental factors.