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Integrated Science

Integrated Science · Quick practice · answer shown after each question

Heredity and genetics

Question 1 of 10

Question 1 of 10

In humans, the sex chromosomes of a male are

Question 2 of 10

Question 2 of 10

A gene is

Question 3 of 10

Question 3 of 10

The passing of traits from parents to their offspring is called

Question 4 of 10

Question 4 of 10

A gene that shows its effect even when only one copy is present is

Question 5 of 10

Question 5 of 10

Identical twins develop from

Question 6 of 10

Question 6 of 10

A sudden change in the genetic material of a cell is

Question 7 of 10

Question 7 of 10

A man with blood group AB marries a woman with blood group O. Which blood group is impossible for their children?

Question 8 of 10

Question 8 of 10

An allele that is always expressed when present is

Question 9 of 10

Question 9 of 10

Two parents with genotype Tt (T = tall, dominant) are crossed. What fraction of the offspring is expected to be short (tt)?

Question 10 of 10

Question 10 of 10

A test cross is used to determine whether an organism showing a dominant trait is

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.