Waec Biology Past Questions and Answers

Question 236:

• WAEC 1992

Identical twins inherit their genes from

A. The same ovum and different sperms
B. The same sperm and different ova
C. Different sperms and many ova
D. The same ovum and the same sperm
E. Many ova and many sperms

Question 237:

• WAEC 1992

The offspring produced when pure strains interbreed is descried as

A. Dominance
B. Phenotype
C. Allele
D. Genotype
E. Hybrid

Question 238:

• WAEC 1992

Which of the following diseases or disorders can be prevented by the application of the knowledge of heredity through marriage counseling ?

A. Sickle cell anaemia
B. Haemophilia
C. Diabetes mellitus
D. Colour blindness
E. River blindness

Question 239:

• WAEC 1992

Which of the following is a function of the chromosome?

A. Transmission of hereditary traits
B. Protein synthesis
C. Excretion
D. Energy production
E. Manufacture of enzyme

Question 240:

• WAEC 1992

Which of the following does not illustrate adaptation to the environment ?

A. Colour chanages by chameleon
B. Streamline shape of fishes
C. Light bones in birds
D. Development of big muscies by a weight lifter
E. Possession of fins by fishes