3rd Year
Genetics
Q1
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Teacher Name:
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1. Type your answer into the box.
2. SAVE the completed assessment as instructed by your teacher.
a) Genetics can be used to explain inheritable and non inheritable characteristics in humans.
The environment also plays a role in the expression of characteristics.
Study the pictures below. For each picture state if the human characteristic shown is inheritable
or non-inheritable by ticking the box. Give a reason for your choice in each case.
Having blue eyes
Answer:
inheritable
non-inheritable
inheritable
non-inheritable
inheritable
non-inheritable
Reason:
Good at playing tennis
Answer:
Reason:
Having fair hair
Answer:
Reason:
Able to drive a car
Answer:
inheritable
non-inheritable
Reason:
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Genetics - Page 1 of 2
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Genetics
Q1
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Being very tall
Answer:
inheritable
non-inheritable
Reason:
b) The diagram represents the
chromosomes in a human cell.
Where in the cell would you
find these chromosomes?
How many chromosomes are in a human skin cell?
How many chromosomes are usually in a human sperm cell?
How many chromosomes are usually in a human egg cell?
Inheritable characteristics are controlled by genes. Show, using an arrow in the diagram above,
where would you find these genes?
(This part of the question cannot be completed on-line. You can either print the page or answer it in your copybook.)
How many genes for eye colour does a person have?
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Genetics - Page 2 of 2
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