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SCIENCE PRACTICE QUESTIONS

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VARIATION AND INHERITANCE

1.

Fifteen children from a class of 45 roll tongues. What percentage of the class are rollers?

A.

25.3%

B.

33.3%

C.

35.3%

D.

75.3%

2.

Which of the following blood groups in humans does not contain antigen?

A.

A

B.

O

C.

B

D.

AB

3.

Sickle-cell anaemia is an example of

A.

sex-linkage.

B.

blood grouping.

C.

multiple alleles.

D.

partial dominance.

4.

Which of the following scientists is associated with the study of inheritance?

A.

Mendel

B.

Linnaeus

C.

Larmarck

D.

Darwin

5.

DNA testing is used to determine

A.

the sex of a baby.

B.

whether twins will be born.

C.

the father of a child.

D.

when a baby is to be born.

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