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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

Identical twins develop from

Question 2 of 10

Question 2 of 10

A cross between Tt and tt gives tall offspring in the ratio

Question 3 of 10

Question 3 of 10

The probability that a baby will be a boy is

Question 4 of 10

Question 4 of 10

In humans, the sex chromosomes of a male are

Question 5 of 10

Question 5 of 10

A heterozygous black guinea pig (Bb) is crossed with a white one (bb). The expected ratio of black to white offspring is

Question 6 of 10

Question 6 of 10

An organism's observable characteristics, such as height or eye colour, make up its

Question 7 of 10

Question 7 of 10

A gene is

Question 8 of 10

Question 8 of 10

Two parents with sickle cell trait (AS) have a child. The probability the child is AS is

Question 9 of 10

Question 9 of 10

The passing of traits from parents to their offspring is called

Question 10 of 10

Question 10 of 10

A person with two identical alleles for a trait (TT or tt) is

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