Waec Biology 2006 Past Questions and Answers

Question 51:

• WAEC 2006

Variation is a factor which

A. Differentiates between individuals of the same species
B. Qualifies an organism to live with others
C. Enables organisms to adapt to the environment
D. States the external features of an organism

Question 52:

• WAEC 2006

Which of the following trait in humans is not a morphological variation?

A. Height
B. Shape of head
C. Colour of skin
D. Ability to roll the tongue

Question 53:

• WAEC 2006

The blood group in humans referred to as a universal recipient is

A. O
B. A
C. B
D. AB

Question 54:

• WAEC 2006

If a heterozygous red flowered plant, (Rr) was self-fertilized, the offspring would be expected to be

A. All red flowered plants
B. All white flowered plants
C. Red flowered, white flowered plants
D. White flowered red flowered plants

Question 55:

• WAEC 2006

The contrasting pair of genes affecting a trait and located at the same position on homologous chromosomes is
referred to as

A. Chromatids
B. Mutants
C. Alleles
D. Chromatin