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Y8 B5 Revision Quiz Flashcards | StudBud
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Y8 B5 Revision Quiz
Y8 B5 Revision Quiz
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StudBud Administration
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A quiz for #year8 #genetics and #evolution
Flashcards
20 cards
F
Practice quiz
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Host live
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Questions
20
Answers
1
The structure of DNA was worked out by:
Watson and Crick
Adenine and Thymine.
Holmes and Watson
Bonnie and Clyde
2
Which is the best example of an environmental variation?
chin shape
having ear lobes
blood group
a suntan
3
What sort of variation does this chart show?
disrespectful
dominant
discontinous
continuous
4
This birds prey is buried in the sand. Different beak sizes in the population are caused by:
environmental factors
how much the the birds stretch their beaks.
how much the birds use their beaks.
genes.
5
Which is least
likely
to cause the endangerment of a species?
changes in physical environmental factors.
competition from other organisms
decrease in predators
human activities.
6
Evolution is:
what happens after an organism becomes endangered.
a gradual change in an organisms characteristics over time.
when organisms decide to change their features.
something that caused changes to happen in animals.
7
Which of these is
least
likely to be used for conservation?
banning the sale of items made from certain animals
building a zoo
creating a reservoir
setting up a nature reserve
8
Environmental variation is caused:
By varieties.
By environmental factors.
When organisms breed.
By problems in the brains of some animals.
9
Which of these would you expect to find in a gene bank?
money for conservation projects
single genes
gametes
sand
10
A human liver cell has 46 chromosomes. So a human egg cell has ........ chromosomes
92
0
46
23
11
A gene is:
a molecule found in the nucleus of cells.
a large, blue, ghost-like entity that lives in a lamp
A short section of a chromosome.
The first part of an organism's scientific name.
12
When there is plenty of food, what will happen to the number of birds with shorter beaks?
Beak size will grow.
It will go up.
It will not change.
It will go down.
13
Variation is:
differences in characteristics.
A disease
similarities in characteristics.
the scientific name for fertilisation.
14
Which feature of this animal suggests that it is prey for larger animals?
whiskers
long nose
spines on its body
small ears
15
Each chromosome contains one molecule of which substance?
protein
deoxyribodipyrimidine
integrin
DNA
16
Inherited characteristics in humans are caused by:
children learning things from their parents and school
genetic information
blood
the country in which they grow up.
17
The theory of evolution that most scientists believe today was put forward by:
Lamarck and Drinker Cope
Hall and Oates
Wallace and Darwin.
Orville and Wilbur Wright
18
Which is the best example of an inherited variation?
a broken leg
a tatoo
eye colour
a scar
19
Genetic information can be found in a sperm cell in the:
tail.
tip of the head.
nucleus.
cytoplasm.
20
The overall shape of this chart is called:
norman distribution
uneven distribution
normal distribution
even distribution