WAEC Biology questions

353 questions with answers and explanations. Tap an option to check yourself.

All topics Cell structure and organisation · 26 Cellular activities · 24 Co-ordination and control · 27 Ecology · 33 Evolution · 18 Excretion · 22 Growth · 18 Heredity and variation · 24 Nutrition · 30 Reproduction · 29 Respiration · 25 Support and movement · 22 Transport · 27 Variety of organisms · 28

Question 161· Growth· WAEC
The plant hormone responsible for the bending of shoots towards light is
Explanation and discussion
Question 162· Growth· WAEC
The hormone that controls growth in human beings is produced by the
Explanation and discussion
Question 163· Growth· WAEC
The part of a germinating bean seed that grows down to form the root is the
Explanation and discussion
Question 164· Growth· WAEC
In hypogeal germination, the cotyledons
Explanation and discussion
Question 165· Growth· WAEC
Secondary thickening in dicot stems is due to the activity of the
Explanation and discussion
Question 166· Growth· WAEC
The plant hormone responsible for shoot bending towards light is
Explanation and discussion
Question 167· Growth· WAEC
An insect that develops through egg, nymph and adult stages shows
Explanation and discussion
Question 168· Growth· WAEC
Which of these conditions is NOT necessary for the germination of most seeds?
Explanation and discussion
Question 169· Heredity and variation· WAEC
In a monohybrid cross, the ratio of tall to short plants in the F₂ generation is
Explanation and discussion
Question 170· Heredity and variation· WAEC
The genotype of a person who is a carrier of sickle cell is
Explanation and discussion
Question 171· Heredity and variation· WAEC
A person with blood group O can donate blood to people of
Explanation and discussion
Question 172· Heredity and variation· WAEC
Which of these shows continuous variation?
Explanation and discussion
Question 173· Heredity and variation· WAEC
An allele that shows its effect only when two copies are present is
Explanation and discussion
Question 174· Heredity and variation· WAEC
In humans, the sex of a child is determined by the
Explanation and discussion
Question 175· Heredity and variation· WAEC
A couple already has four daughters. What is the probability that their fifth child will be a boy?
Explanation and discussion
Question 176· Heredity and variation· WAEC
Height in humans is an example of
Explanation and discussion
Question 177· Heredity and variation· WAEC
The units of inheritance found on chromosomes are
Explanation and discussion
Question 178· Heredity and variation· WAEC
The passing on of characteristics from parents to offspring is called
Explanation and discussion
Question 179· Heredity and variation· WAEC
A man of blood group AB marries a woman of blood group O. What blood groups can their children have?
Explanation and discussion
Question 180· Heredity and variation· WAEC
The physical appearance of an organism is its
Explanation and discussion

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WAEC Biology questions

The plant hormone responsible for the bending of shoots towards light is

The hormone that controls growth in human beings is produced by the

The part of a germinating bean seed that grows down to form the root is the

In hypogeal germination, the cotyledons

Secondary thickening in dicot stems is due to the activity of the

The plant hormone responsible for shoot bending towards light is

An insect that develops through egg, nymph and adult stages shows

Which of these conditions is NOT necessary for the germination of most seeds?

In a monohybrid cross, the ratio of tall to short plants in the F₂ generation is

The genotype of a person who is a carrier of sickle cell is

A person with blood group O can donate blood to people of

Which of these shows continuous variation?

An allele that shows its effect only when two copies are present is

In humans, the sex of a child is determined by the

A couple already has four daughters. What is the probability that their fifth child will be a boy?

Height in humans is an example of

The units of inheritance found on chromosomes are

The passing on of characteristics from parents to offspring is called

A man of blood group AB marries a woman of blood group O. What blood groups can their children have?

The physical appearance of an organism is its