Waec Biology Past Questions and Answers

Question 1611:

• WAEC 2015

Use the diagram above to answer this question.
What are the genotypes of the parents if the gene for skin colour is H?

A. Spotted Leopard HH Black Panther hh
B. Spotted Leopard HH Black Panther Hh
C. Spotted Leopard Hh Black Panther Hh
D. Spotted Leopard Hh Black Panther hh

Question 1612:

• WAEC 2015

According to Mendel's first law of inheritance, segregation of genes occur when

A. Tall plants are crossbred
B. Short plants are crossbred
C. Tall plants and short plants are crossbred
D. Plants are crossbred

Question 1613:

• WAEC 2015

Which of the following statements about sex-linked characters is not true?

A. They are usually borne on the X = chromosome
B. They are more common in males
C. Males are usually carriers
D. They are not usually carried on the Y chromosomes

Question 1614:

• WAEC 2015

In explaining the term camouflage, to a class, the diagram above show four varieties, P, Q, R, and S of the same species of fish living amongst water plants in a river were used
Which of the varieties is likely to decrease most in number if a predatory fish is introduced into the river?

A. P
B. Q
C. R
D. S

Question 1615:

• WAEC 2015

In explaining the term camouflage, to a class, the diagram above show four varieties, P, Q, R, and S of the same species of fish living amongst water plants in a river were used
Which of the varieties is most likely to outlive the others?

A. P
B. Q
C. R
D. S