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Environmental influence and concordance rate

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

Identical twins genes are

a)

different

b)

similar

2.

the percentage of twins who both express a given trait is called ______

a)

concordance rate

b)

growth rate

c)

twin rate

3.

which of the following is an example of a concordance trait

a)

reading ability

b)

eye color

c)

hair color

4.

which of the following are environmental factors?

a)

temperature

b)

gene eye color

c)

gene hair color

5.

which of the following is an environmental factor?

a)

sunlight

b)

eye color

c)

hair color

6.

Fraternal twins genes are _____

a)

similar

b)

different

7.

Siamese cat hair color is affected by temperature. this is an example of ____

a)

genetic influence

b)

environmental influence

c)

not enough data ;)

8.

Heredity is the _____

a)

passing on of genetic information from generation to generation

b)

passing on of proteins from generation to generation

c)

passing on of carbohydrates from generation to generation

9.

Why are identical twins often used in studies comparing nature and nurture?

a)

They share the same genetic code.

b)

They are more susceptible to diseases.

c)

They have fewer environmental differences.

d)

Their heredity is more complex.

10.

Which type of twins come from two different eggs?

a)

Fraternal

b)

Identical

c)

Trizygotic

d)

Paternal